Home / 22,612.14-31,204.74-13,178.88

Finding the Fourth Proportional to 22,612.14, 31,204.74 and 13,178.88

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Solution

The fourth proportional to 22,612.14, 31,204.74 and 13,178.88 is: 18,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.14 : 31,204.74 = 13,178.88 : x
  2. Step 2: Convert to fraction form
    22,612.14/31,204.74 = 13,178.88/x
  3. Step 3: Cross multiply
    22,612.14x = 31,204.74 × 13,178.88
  4. Step 4: Simplify right side
    22,612.14x = 411,243,523.89
  5. Step 5: Solve for x
    x = 411,243,523.89/22,612.14
  6. Step 6: Final answer
    x = 18,186.85

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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.