Home / 31,143.42-42,976.35-17,714.66

Finding the Fourth Proportional to 31,143.42, 42,976.35 and 17,714.66

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Solution

The fourth proportional to 31,143.42, 42,976.35 and 17,714.66 is: 24,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143.42 : 42,976.35 = 17,714.66 : x
  2. Step 2: Convert to fraction form
    31,143.42/42,976.35 = 17,714.66/x
  3. Step 3: Cross multiply
    31,143.42x = 42,976.35 × 17,714.66
  4. Step 4: Simplify right side
    31,143.42x = 761,311,213.41
  5. Step 5: Solve for x
    x = 761,311,213.41/31,143.42
  6. Step 6: Final answer
    x = 24,445.33

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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.