Home / 26,121.61-36,035.04-15,503.73

Finding the Fourth Proportional to 26,121.61, 36,035.04 and 15,503.73

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Solution

The fourth proportional to 26,121.61, 36,035.04 and 15,503.73 is: 21,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,121.61 : 36,035.04 = 15,503.73 : x
  2. Step 2: Convert to fraction form
    26,121.61/36,035.04 = 15,503.73/x
  3. Step 3: Cross multiply
    26,121.61x = 36,035.04 × 15,503.73
  4. Step 4: Simplify right side
    26,121.61x = 558,677,530.70
  5. Step 5: Solve for x
    x = 558,677,530.70/26,121.61
  6. Step 6: Final answer
    x = 21,387.56

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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.