Home / 26,281.20-39,428.10-8,751.18

Finding the Fourth Proportional to 26,281.20, 39,428.10 and 8,751.18

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Solution

The fourth proportional to 26,281.20, 39,428.10 and 8,751.18 is: 13,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,281.20 : 39,428.10 = 8,751.18 : x
  2. Step 2: Convert to fraction form
    26,281.20/39,428.10 = 8,751.18/x
  3. Step 3: Cross multiply
    26,281.20x = 39,428.10 × 8,751.18
  4. Step 4: Simplify right side
    26,281.20x = 345,042,400.16
  5. Step 5: Solve for x
    x = 345,042,400.16/26,281.20
  6. Step 6: Final answer
    x = 13,128.87

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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.