Home / 22,837.77-31,520.13-13,280.61

Finding the Fourth Proportional to 22,837.77, 31,520.13 and 13,280.61

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Solution

The fourth proportional to 22,837.77, 31,520.13 and 13,280.61 is: 18,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,837.77 : 31,520.13 = 13,280.61 : x
  2. Step 2: Convert to fraction form
    22,837.77/31,520.13 = 13,280.61/x
  3. Step 3: Cross multiply
    22,837.77x = 31,520.13 × 13,280.61
  4. Step 4: Simplify right side
    22,837.77x = 418,606,487.28
  5. Step 5: Solve for x
    x = 418,606,487.28/22,837.77
  6. Step 6: Final answer
    x = 18,329.57

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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.