Home / 31,550.59-47,319.20-11,830.60

Finding the Fourth Proportional to 31,550.59, 47,319.20 and 11,830.60

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Solution

The fourth proportional to 31,550.59, 47,319.20 and 11,830.60 is: 17,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.59 : 47,319.20 = 11,830.60 : x
  2. Step 2: Convert to fraction form
    31,550.59/47,319.20 = 11,830.60/x
  3. Step 3: Cross multiply
    31,550.59x = 47,319.20 × 11,830.60
  4. Step 4: Simplify right side
    31,550.59x = 559,814,527.52
  5. Step 5: Solve for x
    x = 559,814,527.52/31,550.59
  6. Step 6: Final answer
    x = 17,743.39

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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.