Home / 21,545.17-29,731.98-12,113.71

Finding the Fourth Proportional to 21,545.17, 29,731.98 and 12,113.71

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Solution

The fourth proportional to 21,545.17, 29,731.98 and 12,113.71 is: 16,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545.17 : 29,731.98 = 12,113.71 : x
  2. Step 2: Convert to fraction form
    21,545.17/29,731.98 = 12,113.71/x
  3. Step 3: Cross multiply
    21,545.17x = 29,731.98 × 12,113.71
  4. Step 4: Simplify right side
    21,545.17x = 360,164,583.45
  5. Step 5: Solve for x
    x = 360,164,583.45/21,545.17
  6. Step 6: Final answer
    x = 16,716.72

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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.