Home / 39,892.28-55,031.12-30,444.44

Finding the Fourth Proportional to 39,892.28, 55,031.12 and 30,444.44

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Solution

The fourth proportional to 39,892.28, 55,031.12 and 30,444.44 is: 41,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,892.28 : 55,031.12 = 30,444.44 : x
  2. Step 2: Convert to fraction form
    39,892.28/55,031.12 = 30,444.44/x
  3. Step 3: Cross multiply
    39,892.28x = 55,031.12 × 30,444.44
  4. Step 4: Simplify right side
    39,892.28x = 1,675,391,630.97
  5. Step 5: Solve for x
    x = 1,675,391,630.97/39,892.28
  6. Step 6: Final answer
    x = 41,997.89

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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.