Home / 26,780.52-40,142.45-9,902.68

Finding the Fourth Proportional to 26,780.52, 40,142.45 and 9,902.68

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Solution

The fourth proportional to 26,780.52, 40,142.45 and 9,902.68 is: 14,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,780.52 : 40,142.45 = 9,902.68 : x
  2. Step 2: Convert to fraction form
    26,780.52/40,142.45 = 9,902.68/x
  3. Step 3: Cross multiply
    26,780.52x = 40,142.45 × 9,902.68
  4. Step 4: Simplify right side
    26,780.52x = 397,517,894.34
  5. Step 5: Solve for x
    x = 397,517,894.34/26,780.52
  6. Step 6: Final answer
    x = 14,843.55

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1.5x scale

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.