Home / 22,265.10-30,731.67-13,322.70

Finding the Fourth Proportional to 22,265.10, 30,731.67 and 13,322.70

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Solution

The fourth proportional to 22,265.10, 30,731.67 and 13,322.70 is: 18,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.10 : 30,731.67 = 13,322.70 : x
  2. Step 2: Convert to fraction form
    22,265.10/30,731.67 = 13,322.70/x
  3. Step 3: Cross multiply
    22,265.10x = 30,731.67 × 13,322.70
  4. Step 4: Simplify right side
    22,265.10x = 409,428,819.91
  5. Step 5: Solve for x
    x = 409,428,819.91/22,265.10
  6. Step 6: Final answer
    x = 18,388.82

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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.