Home / 28,498.60-42,756.52-8,508.75

Finding the Fourth Proportional to 28,498.60, 42,756.52 and 8,508.75

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Solution

The fourth proportional to 28,498.60, 42,756.52 and 8,508.75 is: 12,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.60 : 42,756.52 = 8,508.75 : x
  2. Step 2: Convert to fraction form
    28,498.60/42,756.52 = 8,508.75/x
  3. Step 3: Cross multiply
    28,498.60x = 42,756.52 × 8,508.75
  4. Step 4: Simplify right side
    28,498.60x = 363,804,539.55
  5. Step 5: Solve for x
    x = 363,804,539.55/28,498.60
  6. Step 6: Final answer
    x = 12,765.70

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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.