Home / 31,477.11-47,207.88-19,624.78

Finding the Fourth Proportional to 31,477.11, 47,207.88 and 19,624.78

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Solution

The fourth proportional to 31,477.11, 47,207.88 and 19,624.78 is: 29,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.11 : 47,207.88 = 19,624.78 : x
  2. Step 2: Convert to fraction form
    31,477.11/47,207.88 = 19,624.78/x
  3. Step 3: Cross multiply
    31,477.11x = 47,207.88 × 19,624.78
  4. Step 4: Simplify right side
    31,477.11x = 926,444,382.88
  5. Step 5: Solve for x
    x = 926,444,382.88/31,477.11
  6. Step 6: Final answer
    x = 29,432.32

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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.