Home / 26,860.80-40,279.05-10,215.30

Finding the Fourth Proportional to 26,860.80, 40,279.05 and 10,215.30

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Solution

The fourth proportional to 26,860.80, 40,279.05 and 10,215.30 is: 15,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,860.80 : 40,279.05 = 10,215.30 : x
  2. Step 2: Convert to fraction form
    26,860.80/40,279.05 = 10,215.30/x
  3. Step 3: Cross multiply
    26,860.80x = 40,279.05 × 10,215.30
  4. Step 4: Simplify right side
    26,860.80x = 411,462,579.47
  5. Step 5: Solve for x
    x = 411,462,579.47/26,860.80
  6. Step 6: Final answer
    x = 15,318.33

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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.