Home / 31,432.66-43,364.77-17,996.78

Finding the Fourth Proportional to 31,432.66, 43,364.77 and 17,996.78

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Solution

The fourth proportional to 31,432.66, 43,364.77 and 17,996.78 is: 24,828.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.66 : 43,364.77 = 17,996.78 : x
  2. Step 2: Convert to fraction form
    31,432.66/43,364.77 = 17,996.78/x
  3. Step 3: Cross multiply
    31,432.66x = 43,364.77 × 17,996.78
  4. Step 4: Simplify right side
    31,432.66x = 780,426,288.86
  5. Step 5: Solve for x
    x = 780,426,288.86/31,432.66
  6. Step 6: Final answer
    x = 24,828.52

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Half scale
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Double scale
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Similar ratio
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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.