Home / 26,359.13-39,540.72-7,639.42

Finding the Fourth Proportional to 26,359.13, 39,540.72 and 7,639.42

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Solution

The fourth proportional to 26,359.13, 39,540.72 and 7,639.42 is: 11,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,359.13 : 39,540.72 = 7,639.42 : x
  2. Step 2: Convert to fraction form
    26,359.13/39,540.72 = 7,639.42/x
  3. Step 3: Cross multiply
    26,359.13x = 39,540.72 × 7,639.42
  4. Step 4: Simplify right side
    26,359.13x = 302,067,931.28
  5. Step 5: Solve for x
    x = 302,067,931.28/26,359.13
  6. Step 6: Final answer
    x = 11,459.71

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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.