Home / 31,719.40-47,652.54-19,909.96

Finding the Fourth Proportional to 31,719.40, 47,652.54 and 19,909.96

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Solution

The fourth proportional to 31,719.40, 47,652.54 and 19,909.96 is: 29,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.40 : 47,652.54 = 19,909.96 : x
  2. Step 2: Convert to fraction form
    31,719.40/47,652.54 = 19,909.96/x
  3. Step 3: Cross multiply
    31,719.40x = 47,652.54 × 19,909.96
  4. Step 4: Simplify right side
    31,719.40x = 948,760,165.30
  5. Step 5: Solve for x
    x = 948,760,165.30/31,719.40
  6. Step 6: Final answer
    x = 29,911.04

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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.