Home / 31,439.29-47,162.01-11,454.21

Finding the Fourth Proportional to 31,439.29, 47,162.01 and 11,454.21

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Solution

The fourth proportional to 31,439.29, 47,162.01 and 11,454.21 is: 17,182.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.29 : 47,162.01 = 11,454.21 : x
  2. Step 2: Convert to fraction form
    31,439.29/47,162.01 = 11,454.21/x
  3. Step 3: Cross multiply
    31,439.29x = 47,162.01 × 11,454.21
  4. Step 4: Simplify right side
    31,439.29x = 540,203,566.56
  5. Step 5: Solve for x
    x = 540,203,566.56/31,439.29
  6. Step 6: Final answer
    x = 17,182.44

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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.