Home / 31,470.91-47,190.11-9,281.47

Finding the Fourth Proportional to 31,470.91, 47,190.11 and 9,281.47

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Solution

The fourth proportional to 31,470.91, 47,190.11 and 9,281.47 is: 13,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.91 : 47,190.11 = 9,281.47 : x
  2. Step 2: Convert to fraction form
    31,470.91/47,190.11 = 9,281.47/x
  3. Step 3: Cross multiply
    31,470.91x = 47,190.11 × 9,281.47
  4. Step 4: Simplify right side
    31,470.91x = 437,993,590.26
  5. Step 5: Solve for x
    x = 437,993,590.26/31,470.91
  6. Step 6: Final answer
    x = 13,917.41

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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.