Home / 22,747.28-31,380.52-13,310

Finding the Fourth Proportional to 22,747.28, 31,380.52 and 13,310

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Solution

The fourth proportional to 22,747.28, 31,380.52 and 13,310 is: 18,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,747.28 : 31,380.52 = 13,310 : x
  2. Step 2: Convert to fraction form
    22,747.28/31,380.52 = 13,310/x
  3. Step 3: Cross multiply
    22,747.28x = 31,380.52 × 13,310
  4. Step 4: Simplify right side
    22,747.28x = 417,674,721.20
  5. Step 5: Solve for x
    x = 417,674,721.20/22,747.28
  6. Step 6: Final answer
    x = 18,361.52

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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.