Home / 26,981.40-40,472.10-21,404.55

Finding the Fourth Proportional to 26,981.40, 40,472.10 and 21,404.55

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Solution

The fourth proportional to 26,981.40, 40,472.10 and 21,404.55 is: 32,106.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,981.40 : 40,472.10 = 21,404.55 : x
  2. Step 2: Convert to fraction form
    26,981.40/40,472.10 = 21,404.55/x
  3. Step 3: Cross multiply
    26,981.40x = 40,472.10 × 21,404.55
  4. Step 4: Simplify right side
    26,981.40x = 866,287,088.06
  5. Step 5: Solve for x
    x = 866,287,088.06/26,981.40
  6. Step 6: Final answer
    x = 32,106.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.