Home / 26,987.42-40,479.56-10,346.78

Finding the Fourth Proportional to 26,987.42, 40,479.56 and 10,346.78

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Solution

The fourth proportional to 26,987.42, 40,479.56 and 10,346.78 is: 15,519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,987.42 : 40,479.56 = 10,346.78 : x
  2. Step 2: Convert to fraction form
    26,987.42/40,479.56 = 10,346.78/x
  3. Step 3: Cross multiply
    26,987.42x = 40,479.56 × 10,346.78
  4. Step 4: Simplify right side
    26,987.42x = 418,833,101.82
  5. Step 5: Solve for x
    x = 418,833,101.82/26,987.42
  6. Step 6: Final answer
    x = 15,519.57

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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.