Home / 31,508.10-43,469.73-18,765.18

Finding the Fourth Proportional to 31,508.10, 43,469.73 and 18,765.18

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Solution

The fourth proportional to 31,508.10, 43,469.73 and 18,765.18 is: 25,889.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,508.10 : 43,469.73 = 18,765.18 : x
  2. Step 2: Convert to fraction form
    31,508.10/43,469.73 = 18,765.18/x
  3. Step 3: Cross multiply
    31,508.10x = 43,469.73 × 18,765.18
  4. Step 4: Simplify right side
    31,508.10x = 815,717,308.00
  5. Step 5: Solve for x
    x = 815,717,308.00/31,508.10
  6. Step 6: Final answer
    x = 25,889.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.