Home / 22,885.47-31,580.99-13,325.61

Finding the Fourth Proportional to 22,885.47, 31,580.99 and 13,325.61

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Solution

The fourth proportional to 22,885.47, 31,580.99 and 13,325.61 is: 18,388.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,885.47 : 31,580.99 = 13,325.61 : x
  2. Step 2: Convert to fraction form
    22,885.47/31,580.99 = 13,325.61/x
  3. Step 3: Cross multiply
    22,885.47x = 31,580.99 × 13,325.61
  4. Step 4: Simplify right side
    22,885.47x = 420,836,057.93
  5. Step 5: Solve for x
    x = 420,836,057.93/22,885.47
  6. Step 6: Final answer
    x = 18,388.79

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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.