Home / 28,233.60-42,350.40-18,902.40

Finding the Fourth Proportional to 28,233.60, 42,350.40 and 18,902.40

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Solution

The fourth proportional to 28,233.60, 42,350.40 and 18,902.40 is: 28,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.60 : 42,350.40 = 18,902.40 : x
  2. Step 2: Convert to fraction form
    28,233.60/42,350.40 = 18,902.40/x
  3. Step 3: Cross multiply
    28,233.60x = 42,350.40 × 18,902.40
  4. Step 4: Simplify right side
    28,233.60x = 800,524,200.96
  5. Step 5: Solve for x
    x = 800,524,200.96/28,233.60
  6. Step 6: Final answer
    x = 28,353.60

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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.