Home / 29,449.16-40,656.60-19,406.78

Finding the Fourth Proportional to 29,449.16, 40,656.60 and 19,406.78

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Solution

The fourth proportional to 29,449.16, 40,656.60 and 19,406.78 is: 26,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,449.16 : 40,656.60 = 19,406.78 : x
  2. Step 2: Convert to fraction form
    29,449.16/40,656.60 = 19,406.78/x
  3. Step 3: Cross multiply
    29,449.16x = 40,656.60 × 19,406.78
  4. Step 4: Simplify right side
    29,449.16x = 789,013,691.75
  5. Step 5: Solve for x
    x = 789,013,691.75/29,449.16
  6. Step 6: Final answer
    x = 26,792.40

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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.