Home / 28,037.14-38,691.02-15,461.90

Finding the Fourth Proportional to 28,037.14, 38,691.02 and 15,461.90

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Solution

The fourth proportional to 28,037.14, 38,691.02 and 15,461.90 is: 21,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.14 : 38,691.02 = 15,461.90 : x
  2. Step 2: Convert to fraction form
    28,037.14/38,691.02 = 15,461.90/x
  3. Step 3: Cross multiply
    28,037.14x = 38,691.02 × 15,461.90
  4. Step 4: Simplify right side
    28,037.14x = 598,236,682.14
  5. Step 5: Solve for x
    x = 598,236,682.14/28,037.14
  6. Step 6: Final answer
    x = 21,337.29

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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.