Home / 38,549.58-53,196.36-21,781.50

Finding the Fourth Proportional to 38,549.58, 53,196.36 and 21,781.50

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Solution

The fourth proportional to 38,549.58, 53,196.36 and 21,781.50 is: 30,057.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,549.58 : 53,196.36 = 21,781.50 : x
  2. Step 2: Convert to fraction form
    38,549.58/53,196.36 = 21,781.50/x
  3. Step 3: Cross multiply
    38,549.58x = 53,196.36 × 21,781.50
  4. Step 4: Simplify right side
    38,549.58x = 1,158,696,515.34
  5. Step 5: Solve for x
    x = 1,158,696,515.34/38,549.58
  6. Step 6: Final answer
    x = 30,057.31

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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.