Home / 22,683.38-31,304.10-12,612.84

Finding the Fourth Proportional to 22,683.38, 31,304.10 and 12,612.84

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Solution

The fourth proportional to 22,683.38, 31,304.10 and 12,612.84 is: 17,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,683.38 : 31,304.10 = 12,612.84 : x
  2. Step 2: Convert to fraction form
    22,683.38/31,304.10 = 12,612.84/x
  3. Step 3: Cross multiply
    22,683.38x = 31,304.10 × 12,612.84
  4. Step 4: Simplify right side
    22,683.38x = 394,833,604.64
  5. Step 5: Solve for x
    x = 394,833,604.64/22,683.38
  6. Step 6: Final answer
    x = 17,406.30

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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.