Home / 22,778.92-31,434.96-12,707.11

Finding the Fourth Proportional to 22,778.92, 31,434.96 and 12,707.11

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Solution

The fourth proportional to 22,778.92, 31,434.96 and 12,707.11 is: 17,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.92 : 31,434.96 = 12,707.11 : x
  2. Step 2: Convert to fraction form
    22,778.92/31,434.96 = 12,707.11/x
  3. Step 3: Cross multiply
    22,778.92x = 31,434.96 × 12,707.11
  4. Step 4: Simplify right side
    22,778.92x = 399,447,494.57
  5. Step 5: Solve for x
    x = 399,447,494.57/22,778.92
  6. Step 6: Final answer
    x = 17,535.84

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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.