Home / 31,427.08-47,129.28-9,234.52

Finding the Fourth Proportional to 31,427.08, 47,129.28 and 9,234.52

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Solution

The fourth proportional to 31,427.08, 47,129.28 and 9,234.52 is: 13,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.08 : 47,129.28 = 9,234.52 : x
  2. Step 2: Convert to fraction form
    31,427.08/47,129.28 = 9,234.52/x
  3. Step 3: Cross multiply
    31,427.08x = 47,129.28 × 9,234.52
  4. Step 4: Simplify right side
    31,427.08x = 435,216,278.75
  5. Step 5: Solve for x
    x = 435,216,278.75/31,427.08
  6. Step 6: Final answer
    x = 13,848.45

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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.