Home / 22,301.11-30,813.78-21,502.86

Finding the Fourth Proportional to 22,301.11, 30,813.78 and 21,502.86

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Solution

The fourth proportional to 22,301.11, 30,813.78 and 21,502.86 is: 29,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,301.11 : 30,813.78 = 21,502.86 : x
  2. Step 2: Convert to fraction form
    22,301.11/30,813.78 = 21,502.86/x
  3. Step 3: Cross multiply
    22,301.11x = 30,813.78 × 21,502.86
  4. Step 4: Simplify right side
    22,301.11x = 662,584,397.41
  5. Step 5: Solve for x
    x = 662,584,397.41/22,301.11
  6. Step 6: Final answer
    x = 29,710.83

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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.