Home / 28,037.28-38,691.60-15,462

Finding the Fourth Proportional to 28,037.28, 38,691.60 and 15,462

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Solution

The fourth proportional to 28,037.28, 38,691.60 and 15,462 is: 21,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.28 : 38,691.60 = 15,462 : x
  2. Step 2: Convert to fraction form
    28,037.28/38,691.60 = 15,462/x
  3. Step 3: Cross multiply
    28,037.28x = 38,691.60 × 15,462
  4. Step 4: Simplify right side
    28,037.28x = 598,249,519.20
  5. Step 5: Solve for x
    x = 598,249,519.20/28,037.28
  6. Step 6: Final answer
    x = 21,337.64

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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.