Home / 22,431.60-30,955.20-12,360.97

Finding the Fourth Proportional to 22,431.60, 30,955.20 and 12,360.97

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Solution

The fourth proportional to 22,431.60, 30,955.20 and 12,360.97 is: 17,057.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.60 : 30,955.20 = 12,360.97 : x
  2. Step 2: Convert to fraction form
    22,431.60/30,955.20 = 12,360.97/x
  3. Step 3: Cross multiply
    22,431.60x = 30,955.20 × 12,360.97
  4. Step 4: Simplify right side
    22,431.60x = 382,636,298.54
  5. Step 5: Solve for x
    x = 382,636,298.54/22,431.60
  6. Step 6: Final answer
    x = 17,057.91

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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.