Home / 29,319.68-40,438.56-20,367.04

Finding the Fourth Proportional to 29,319.68, 40,438.56 and 20,367.04

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Solution

The fourth proportional to 29,319.68, 40,438.56 and 20,367.04 is: 28,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,319.68 : 40,438.56 = 20,367.04 : x
  2. Step 2: Convert to fraction form
    29,319.68/40,438.56 = 20,367.04/x
  3. Step 3: Cross multiply
    29,319.68x = 40,438.56 × 20,367.04
  4. Step 4: Simplify right side
    29,319.68x = 823,613,769.06
  5. Step 5: Solve for x
    x = 823,613,769.06/29,319.68
  6. Step 6: Final answer
    x = 28,090.82

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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.