Home / 31,530.98-47,301.34-9,347.78

Finding the Fourth Proportional to 31,530.98, 47,301.34 and 9,347.78

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Solution

The fourth proportional to 31,530.98, 47,301.34 and 9,347.78 is: 14,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.98 : 47,301.34 = 9,347.78 : x
  2. Step 2: Convert to fraction form
    31,530.98/47,301.34 = 9,347.78/x
  3. Step 3: Cross multiply
    31,530.98x = 47,301.34 × 9,347.78
  4. Step 4: Simplify right side
    31,530.98x = 442,162,520.03
  5. Step 5: Solve for x
    x = 442,162,520.03/31,530.98
  6. Step 6: Final answer
    x = 14,023.11

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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.