Home / 22,718.55-31,350.38-13,156.77

Finding the Fourth Proportional to 22,718.55, 31,350.38 and 13,156.77

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Solution

The fourth proportional to 22,718.55, 31,350.38 and 13,156.77 is: 18,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.55 : 31,350.38 = 13,156.77 : x
  2. Step 2: Convert to fraction form
    22,718.55/31,350.38 = 13,156.77/x
  3. Step 3: Cross multiply
    22,718.55x = 31,350.38 × 13,156.77
  4. Step 4: Simplify right side
    22,718.55x = 412,469,673.29
  5. Step 5: Solve for x
    x = 412,469,673.29/22,718.55
  6. Step 6: Final answer
    x = 18,155.63

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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.