Home / 31,642.56-47,476.94-13,864.04

Finding the Fourth Proportional to 31,642.56, 47,476.94 and 13,864.04

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Solution

The fourth proportional to 31,642.56, 47,476.94 and 13,864.04 is: 20,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,642.56 : 47,476.94 = 13,864.04 : x
  2. Step 2: Convert to fraction form
    31,642.56/47,476.94 = 13,864.04/x
  3. Step 3: Cross multiply
    31,642.56x = 47,476.94 × 13,864.04
  4. Step 4: Simplify right side
    31,642.56x = 658,221,888.53
  5. Step 5: Solve for x
    x = 658,221,888.53/31,642.56
  6. Step 6: Final answer
    x = 20,801.79

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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.