Home / 16,455.14-22,691.91-15,089.17

Finding the Fourth Proportional to 16,455.14, 22,691.91 and 15,089.17

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Solution

The fourth proportional to 16,455.14, 22,691.91 and 15,089.17 is: 20,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.14 : 22,691.91 = 15,089.17 : x
  2. Step 2: Convert to fraction form
    16,455.14/22,691.91 = 15,089.17/x
  3. Step 3: Cross multiply
    16,455.14x = 22,691.91 × 15,089.17
  4. Step 4: Simplify right side
    16,455.14x = 342,402,087.61
  5. Step 5: Solve for x
    x = 342,402,087.61/16,455.14
  6. Step 6: Final answer
    x = 20,808.21

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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.