Home / 22,856.28-31,541.88-13,425

Finding the Fourth Proportional to 22,856.28, 31,541.88 and 13,425

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Solution

The fourth proportional to 22,856.28, 31,541.88 and 13,425 is: 18,526.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,856.28 : 31,541.88 = 13,425 : x
  2. Step 2: Convert to fraction form
    22,856.28/31,541.88 = 13,425/x
  3. Step 3: Cross multiply
    22,856.28x = 31,541.88 × 13,425
  4. Step 4: Simplify right side
    22,856.28x = 423,449,739
  5. Step 5: Solve for x
    x = 423,449,739/22,856.28
  6. Step 6: Final answer
    x = 18,526.63

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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.