Home / 42,031.78-63,031.26-18,346.57

Finding the Fourth Proportional to 42,031.78, 63,031.26 and 18,346.57

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Solution

The fourth proportional to 42,031.78, 63,031.26 and 18,346.57 is: 27,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,031.78 : 63,031.26 = 18,346.57 : x
  2. Step 2: Convert to fraction form
    42,031.78/63,031.26 = 18,346.57/x
  3. Step 3: Cross multiply
    42,031.78x = 63,031.26 × 18,346.57
  4. Step 4: Simplify right side
    42,031.78x = 1,156,407,335.00
  5. Step 5: Solve for x
    x = 1,156,407,335.00/42,031.78
  6. Step 6: Final answer
    x = 27,512.69

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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.