Home / 26,861.15-40,291.68-7,139.71

Finding the Fourth Proportional to 26,861.15, 40,291.68 and 7,139.71

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Solution

The fourth proportional to 26,861.15, 40,291.68 and 7,139.71 is: 10,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,861.15 : 40,291.68 = 7,139.71 : x
  2. Step 2: Convert to fraction form
    26,861.15/40,291.68 = 7,139.71/x
  3. Step 3: Cross multiply
    26,861.15x = 40,291.68 × 7,139.71
  4. Step 4: Simplify right side
    26,861.15x = 287,670,836.66
  5. Step 5: Solve for x
    x = 287,670,836.66/26,861.15
  6. Step 6: Final answer
    x = 10,709.55

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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.