Home / 18,631.11-25,747.80-15,268.62

Finding the Fourth Proportional to 18,631.11, 25,747.80 and 15,268.62

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Solution

The fourth proportional to 18,631.11, 25,747.80 and 15,268.62 is: 21,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.11 : 25,747.80 = 15,268.62 : x
  2. Step 2: Convert to fraction form
    18,631.11/25,747.80 = 15,268.62/x
  3. Step 3: Cross multiply
    18,631.11x = 25,747.80 × 15,268.62
  4. Step 4: Simplify right side
    18,631.11x = 393,133,374.04
  5. Step 5: Solve for x
    x = 393,133,374.04/18,631.11
  6. Step 6: Final answer
    x = 21,100.91

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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.