Home / 28,627.20-42,861.51-21,585.87

Finding the Fourth Proportional to 28,627.20, 42,861.51 and 21,585.87

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Solution

The fourth proportional to 28,627.20, 42,861.51 and 21,585.87 is: 32,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,627.20 : 42,861.51 = 21,585.87 : x
  2. Step 2: Convert to fraction form
    28,627.20/42,861.51 = 21,585.87/x
  3. Step 3: Cross multiply
    28,627.20x = 42,861.51 × 21,585.87
  4. Step 4: Simplify right side
    28,627.20x = 925,202,982.86
  5. Step 5: Solve for x
    x = 925,202,982.86/28,627.20
  6. Step 6: Final answer
    x = 32,319.02

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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.