Home / 28,419.20-42,627.26-8,697.76

Finding the Fourth Proportional to 28,419.20, 42,627.26 and 8,697.76

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Solution

The fourth proportional to 28,419.20, 42,627.26 and 8,697.76 is: 13,046.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419.20 : 42,627.26 = 8,697.76 : x
  2. Step 2: Convert to fraction form
    28,419.20/42,627.26 = 8,697.76/x
  3. Step 3: Cross multiply
    28,419.20x = 42,627.26 × 8,697.76
  4. Step 4: Simplify right side
    28,419.20x = 370,761,676.94
  5. Step 5: Solve for x
    x = 370,761,676.94/28,419.20
  6. Step 6: Final answer
    x = 13,046.17

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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.