Home / 31,265.90-43,147.08-17,118.74

Finding the Fourth Proportional to 31,265.90, 43,147.08 and 17,118.74

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Solution

The fourth proportional to 31,265.90, 43,147.08 and 17,118.74 is: 23,623.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,265.90 : 43,147.08 = 17,118.74 : x
  2. Step 2: Convert to fraction form
    31,265.90/43,147.08 = 17,118.74/x
  3. Step 3: Cross multiply
    31,265.90x = 43,147.08 × 17,118.74
  4. Step 4: Simplify right side
    31,265.90x = 738,623,752.15
  5. Step 5: Solve for x
    x = 738,623,752.15/31,265.90
  6. Step 6: Final answer
    x = 23,623.94

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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.