Home / 29,086.86-40,129.79-17,147.66

Finding the Fourth Proportional to 29,086.86, 40,129.79 and 17,147.66

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Solution

The fourth proportional to 29,086.86, 40,129.79 and 17,147.66 is: 23,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,086.86 : 40,129.79 = 17,147.66 : x
  2. Step 2: Convert to fraction form
    29,086.86/40,129.79 = 17,147.66/x
  3. Step 3: Cross multiply
    29,086.86x = 40,129.79 × 17,147.66
  4. Step 4: Simplify right side
    29,086.86x = 688,131,708.40
  5. Step 5: Solve for x
    x = 688,131,708.40/29,086.86
  6. Step 6: Final answer
    x = 23,657.82

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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.