Home / 31,287.86-43,180.34-17,861.14

Finding the Fourth Proportional to 31,287.86, 43,180.34 and 17,861.14

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Solution

The fourth proportional to 31,287.86, 43,180.34 and 17,861.14 is: 24,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.86 : 43,180.34 = 17,861.14 : x
  2. Step 2: Convert to fraction form
    31,287.86/43,180.34 = 17,861.14/x
  3. Step 3: Cross multiply
    31,287.86x = 43,180.34 × 17,861.14
  4. Step 4: Simplify right side
    31,287.86x = 771,250,097.99
  5. Step 5: Solve for x
    x = 771,250,097.99/31,287.86
  6. Step 6: Final answer
    x = 24,650.14

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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.