Home / 28,139.10-42,219.60-27,716.76

Finding the Fourth Proportional to 28,139.10, 42,219.60 and 27,716.76

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Solution

The fourth proportional to 28,139.10, 42,219.60 and 27,716.76 is: 41,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.10 : 42,219.60 = 27,716.76 : x
  2. Step 2: Convert to fraction form
    28,139.10/42,219.60 = 27,716.76/x
  3. Step 3: Cross multiply
    28,139.10x = 42,219.60 × 27,716.76
  4. Step 4: Simplify right side
    28,139.10x = 1,170,190,520.50
  5. Step 5: Solve for x
    x = 1,170,190,520.50/28,139.10
  6. Step 6: Final answer
    x = 41,585.93

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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.