Home / 29,396.68-40,579.04-20,449.36

Finding the Fourth Proportional to 29,396.68, 40,579.04 and 20,449.36

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Solution

The fourth proportional to 29,396.68, 40,579.04 and 20,449.36 is: 28,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,396.68 : 40,579.04 = 20,449.36 : x
  2. Step 2: Convert to fraction form
    29,396.68/40,579.04 = 20,449.36/x
  3. Step 3: Cross multiply
    29,396.68x = 40,579.04 × 20,449.36
  4. Step 4: Simplify right side
    29,396.68x = 829,815,397.41
  5. Step 5: Solve for x
    x = 829,815,397.41/29,396.68
  6. Step 6: Final answer
    x = 28,228.20

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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.