Home / 31,243.48-43,117.13-17,812.55

Finding the Fourth Proportional to 31,243.48, 43,117.13 and 17,812.55

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Solution

The fourth proportional to 31,243.48, 43,117.13 and 17,812.55 is: 24,581.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.48 : 43,117.13 = 17,812.55 : x
  2. Step 2: Convert to fraction form
    31,243.48/43,117.13 = 17,812.55/x
  3. Step 3: Cross multiply
    31,243.48x = 43,117.13 × 17,812.55
  4. Step 4: Simplify right side
    31,243.48x = 768,026,033.98
  5. Step 5: Solve for x
    x = 768,026,033.98/31,243.48
  6. Step 6: Final answer
    x = 24,581.96

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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.