Home / 18,478.04-25,667.25-18,191.87

Finding the Fourth Proportional to 18,478.04, 25,667.25 and 18,191.87

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Solution

The fourth proportional to 18,478.04, 25,667.25 and 18,191.87 is: 25,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.04 : 25,667.25 = 18,191.87 : x
  2. Step 2: Convert to fraction form
    18,478.04/25,667.25 = 18,191.87/x
  3. Step 3: Cross multiply
    18,478.04x = 25,667.25 × 18,191.87
  4. Step 4: Simplify right side
    18,478.04x = 466,935,055.96
  5. Step 5: Solve for x
    x = 466,935,055.96/18,478.04
  6. Step 6: Final answer
    x = 25,269.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.