Home / 47,128.25-70,691.74-11,589.87

Finding the Fourth Proportional to 47,128.25, 70,691.74 and 11,589.87

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Solution

The fourth proportional to 47,128.25, 70,691.74 and 11,589.87 is: 17,384.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.25 : 70,691.74 = 11,589.87 : x
  2. Step 2: Convert to fraction form
    47,128.25/70,691.74 = 11,589.87/x
  3. Step 3: Cross multiply
    47,128.25x = 70,691.74 × 11,589.87
  4. Step 4: Simplify right side
    47,128.25x = 819,308,091.16
  5. Step 5: Solve for x
    x = 819,308,091.16/47,128.25
  6. Step 6: Final answer
    x = 17,384.65

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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.