Home / 26,870.57-40,305.18-7,149.30

Finding the Fourth Proportional to 26,870.57, 40,305.18 and 7,149.30

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Solution

The fourth proportional to 26,870.57, 40,305.18 and 7,149.30 is: 10,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,870.57 : 40,305.18 = 7,149.30 : x
  2. Step 2: Convert to fraction form
    26,870.57/40,305.18 = 7,149.30/x
  3. Step 3: Cross multiply
    26,870.57x = 40,305.18 × 7,149.30
  4. Step 4: Simplify right side
    26,870.57x = 288,153,823.37
  5. Step 5: Solve for x
    x = 288,153,823.37/26,870.57
  6. Step 6: Final answer
    x = 10,723.77

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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.