Home / 28,508.46-42,770.52-11,876.28

Finding the Fourth Proportional to 28,508.46, 42,770.52 and 11,876.28

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Solution

The fourth proportional to 28,508.46, 42,770.52 and 11,876.28 is: 17,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.46 : 42,770.52 = 11,876.28 : x
  2. Step 2: Convert to fraction form
    28,508.46/42,770.52 = 11,876.28/x
  3. Step 3: Cross multiply
    28,508.46x = 42,770.52 × 11,876.28
  4. Step 4: Simplify right side
    28,508.46x = 507,954,671.27
  5. Step 5: Solve for x
    x = 507,954,671.27/28,508.46
  6. Step 6: Final answer
    x = 17,817.68

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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.