Home / 29,654.28-40,920.12-20,074.68

Finding the Fourth Proportional to 29,654.28, 40,920.12 and 20,074.68

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Solution

The fourth proportional to 29,654.28, 40,920.12 and 20,074.68 is: 27,701.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,654.28 : 40,920.12 = 20,074.68 : x
  2. Step 2: Convert to fraction form
    29,654.28/40,920.12 = 20,074.68/x
  3. Step 3: Cross multiply
    29,654.28x = 40,920.12 × 20,074.68
  4. Step 4: Simplify right side
    29,654.28x = 821,458,314.56
  5. Step 5: Solve for x
    x = 821,458,314.56/29,654.28
  6. Step 6: Final answer
    x = 27,701.17

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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.