Home / 22,747.60-34,121.40-18,856.40

Finding the Fourth Proportional to 22,747.60, 34,121.40 and 18,856.40

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Solution

The fourth proportional to 22,747.60, 34,121.40 and 18,856.40 is: 28,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,747.60 : 34,121.40 = 18,856.40 : x
  2. Step 2: Convert to fraction form
    22,747.60/34,121.40 = 18,856.40/x
  3. Step 3: Cross multiply
    22,747.60x = 34,121.40 × 18,856.40
  4. Step 4: Simplify right side
    22,747.60x = 643,406,766.96
  5. Step 5: Solve for x
    x = 643,406,766.96/22,747.60
  6. Step 6: Final answer
    x = 28,284.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.