Home / 38,437.02-53,043.40-21,440.70

Finding the Fourth Proportional to 38,437.02, 53,043.40 and 21,440.70

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Solution

The fourth proportional to 38,437.02, 53,043.40 and 21,440.70 is: 29,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,437.02 : 53,043.40 = 21,440.70 : x
  2. Step 2: Convert to fraction form
    38,437.02/53,043.40 = 21,440.70/x
  3. Step 3: Cross multiply
    38,437.02x = 53,043.40 × 21,440.70
  4. Step 4: Simplify right side
    38,437.02x = 1,137,287,626.38
  5. Step 5: Solve for x
    x = 1,137,287,626.38/38,437.02
  6. Step 6: Final answer
    x = 29,588.34

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Half scale
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Double scale
Find fourth proportional to 38,438.02, 53,044.78 and 21,441.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.