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Finding the Fourth Proportional to 35,308.13, 48,729.53 and 20,404.13

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Solution

The fourth proportional to 35,308.13, 48,729.53 and 20,404.13 is: 28,160.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,308.13 : 48,729.53 = 20,404.13 : x
  2. Step 2: Convert to fraction form
    35,308.13/48,729.53 = 20,404.13/x
  3. Step 3: Cross multiply
    35,308.13x = 48,729.53 × 20,404.13
  4. Step 4: Simplify right side
    35,308.13x = 994,283,472.32
  5. Step 5: Solve for x
    x = 994,283,472.32/35,308.13
  6. Step 6: Final answer
    x = 28,160.19

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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.