Home / 29,126.24-40,119.36-20,613.68

Finding the Fourth Proportional to 29,126.24, 40,119.36 and 20,613.68

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Solution

The fourth proportional to 29,126.24, 40,119.36 and 20,613.68 is: 28,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,126.24 : 40,119.36 = 20,613.68 : x
  2. Step 2: Convert to fraction form
    29,126.24/40,119.36 = 20,613.68/x
  3. Step 3: Cross multiply
    29,126.24x = 40,119.36 × 20,613.68
  4. Step 4: Simplify right side
    29,126.24x = 827,007,648.84
  5. Step 5: Solve for x
    x = 827,007,648.84/29,126.24
  6. Step 6: Final answer
    x = 28,393.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.