Home / 38,621.36-53,285.09-21,623.10

Finding the Fourth Proportional to 38,621.36, 53,285.09 and 21,623.10

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Solution

The fourth proportional to 38,621.36, 53,285.09 and 21,623.10 is: 29,832.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,621.36 : 53,285.09 = 21,623.10 : x
  2. Step 2: Convert to fraction form
    38,621.36/53,285.09 = 21,623.10/x
  3. Step 3: Cross multiply
    38,621.36x = 53,285.09 × 21,623.10
  4. Step 4: Simplify right side
    38,621.36x = 1,152,188,721.46
  5. Step 5: Solve for x
    x = 1,152,188,721.46/38,621.36
  6. Step 6: Final answer
    x = 29,832.94

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Half scale
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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.