Home / 22,691.27-31,311.59-12,618.11

Finding the Fourth Proportional to 22,691.27, 31,311.59 and 12,618.11

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Solution

The fourth proportional to 22,691.27, 31,311.59 and 12,618.11 is: 17,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.27 : 31,311.59 = 12,618.11 : x
  2. Step 2: Convert to fraction form
    22,691.27/31,311.59 = 12,618.11/x
  3. Step 3: Cross multiply
    22,691.27x = 31,311.59 × 12,618.11
  4. Step 4: Simplify right side
    22,691.27x = 395,092,867.25
  5. Step 5: Solve for x
    x = 395,092,867.25/22,691.27
  6. Step 6: Final answer
    x = 17,411.67

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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.