Home / 22,101.70-30,497.40-13,145.92

Finding the Fourth Proportional to 22,101.70, 30,497.40 and 13,145.92

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Solution

The fourth proportional to 22,101.70, 30,497.40 and 13,145.92 is: 18,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,101.70 : 30,497.40 = 13,145.92 : x
  2. Step 2: Convert to fraction form
    22,101.70/30,497.40 = 13,145.92/x
  3. Step 3: Cross multiply
    22,101.70x = 30,497.40 × 13,145.92
  4. Step 4: Simplify right side
    22,101.70x = 400,916,380.61
  5. Step 5: Solve for x
    x = 400,916,380.61/22,101.70
  6. Step 6: Final answer
    x = 18,139.62

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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.