Home / 22,891.20-31,581.60-13,935.84

Finding the Fourth Proportional to 22,891.20, 31,581.60 and 13,935.84

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Solution

The fourth proportional to 22,891.20, 31,581.60 and 13,935.84 is: 19,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,891.20 : 31,581.60 = 13,935.84 : x
  2. Step 2: Convert to fraction form
    22,891.20/31,581.60 = 13,935.84/x
  3. Step 3: Cross multiply
    22,891.20x = 31,581.60 × 13,935.84
  4. Step 4: Simplify right side
    22,891.20x = 440,116,124.54
  5. Step 5: Solve for x
    x = 440,116,124.54/22,891.20
  6. Step 6: Final answer
    x = 19,226.43

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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.