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Finding the Fourth Proportional to 22,000.29, 30,358.15 and 13,502.77

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Solution

The fourth proportional to 22,000.29, 30,358.15 and 13,502.77 is: 18,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,000.29 : 30,358.15 = 13,502.77 : x
  2. Step 2: Convert to fraction form
    22,000.29/30,358.15 = 13,502.77/x
  3. Step 3: Cross multiply
    22,000.29x = 30,358.15 × 13,502.77
  4. Step 4: Simplify right side
    22,000.29x = 409,919,117.08
  5. Step 5: Solve for x
    x = 409,919,117.08/22,000.29
  6. Step 6: Final answer
    x = 18,632.44

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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.