Home / 23,081.28-31,854.15-13,011.66

Finding the Fourth Proportional to 23,081.28, 31,854.15 and 13,011.66

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Solution

The fourth proportional to 23,081.28, 31,854.15 and 13,011.66 is: 17,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,081.28 : 31,854.15 = 13,011.66 : x
  2. Step 2: Convert to fraction form
    23,081.28/31,854.15 = 13,011.66/x
  3. Step 3: Cross multiply
    23,081.28x = 31,854.15 × 13,011.66
  4. Step 4: Simplify right side
    23,081.28x = 414,475,369.39
  5. Step 5: Solve for x
    x = 414,475,369.39/23,081.28
  6. Step 6: Final answer
    x = 17,957.21

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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.