Home / 31,508.15-47,260.62-11,785.25

Finding the Fourth Proportional to 31,508.15, 47,260.62 and 11,785.25

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Solution

The fourth proportional to 31,508.15, 47,260.62 and 11,785.25 is: 17,677.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,508.15 : 47,260.62 = 11,785.25 : x
  2. Step 2: Convert to fraction form
    31,508.15/47,260.62 = 11,785.25/x
  3. Step 3: Cross multiply
    31,508.15x = 47,260.62 × 11,785.25
  4. Step 4: Simplify right side
    31,508.15x = 556,978,340.01
  5. Step 5: Solve for x
    x = 556,978,340.01/31,508.15
  6. Step 6: Final answer
    x = 17,677.28

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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.