Home / 28,753.78-43,127.82-9,031.81

Finding the Fourth Proportional to 28,753.78, 43,127.82 and 9,031.81

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Solution

The fourth proportional to 28,753.78, 43,127.82 and 9,031.81 is: 13,546.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.78 : 43,127.82 = 9,031.81 : x
  2. Step 2: Convert to fraction form
    28,753.78/43,127.82 = 9,031.81/x
  3. Step 3: Cross multiply
    28,753.78x = 43,127.82 × 9,031.81
  4. Step 4: Simplify right side
    28,753.78x = 389,522,275.95
  5. Step 5: Solve for x
    x = 389,522,275.95/28,753.78
  6. Step 6: Final answer
    x = 13,546.82

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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.