Home / 22,688.39-31,305.48-13,736.72

Finding the Fourth Proportional to 22,688.39, 31,305.48 and 13,736.72

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Solution

The fourth proportional to 22,688.39, 31,305.48 and 13,736.72 is: 18,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,688.39 : 31,305.48 = 13,736.72 : x
  2. Step 2: Convert to fraction form
    22,688.39/31,305.48 = 13,736.72/x
  3. Step 3: Cross multiply
    22,688.39x = 31,305.48 × 13,736.72
  4. Step 4: Simplify right side
    22,688.39x = 430,034,456.70
  5. Step 5: Solve for x
    x = 430,034,456.70/22,688.39
  6. Step 6: Final answer
    x = 18,953.95

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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.