Home / 28,712.43-39,624.47-15,966.90

Finding the Fourth Proportional to 28,712.43, 39,624.47 and 15,966.90

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Solution

The fourth proportional to 28,712.43, 39,624.47 and 15,966.90 is: 22,035.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.43 : 39,624.47 = 15,966.90 : x
  2. Step 2: Convert to fraction form
    28,712.43/39,624.47 = 15,966.90/x
  3. Step 3: Cross multiply
    28,712.43x = 39,624.47 × 15,966.90
  4. Step 4: Simplify right side
    28,712.43x = 632,679,989.96
  5. Step 5: Solve for x
    x = 632,679,989.96/28,712.43
  6. Step 6: Final answer
    x = 22,035.06

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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.