Home / 31,678.12-47,452.17-15,835.75

Finding the Fourth Proportional to 31,678.12, 47,452.17 and 15,835.75

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Solution

The fourth proportional to 31,678.12, 47,452.17 and 15,835.75 is: 23,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.12 : 47,452.17 = 15,835.75 : x
  2. Step 2: Convert to fraction form
    31,678.12/47,452.17 = 15,835.75/x
  3. Step 3: Cross multiply
    31,678.12x = 47,452.17 × 15,835.75
  4. Step 4: Simplify right side
    31,678.12x = 751,440,701.08
  5. Step 5: Solve for x
    x = 751,440,701.08/31,678.12
  6. Step 6: Final answer
    x = 23,721.13

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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.