Home / 26,979.80-40,469.70-17,648.60

Finding the Fourth Proportional to 26,979.80, 40,469.70 and 17,648.60

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Solution

The fourth proportional to 26,979.80, 40,469.70 and 17,648.60 is: 26,472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.80 : 40,469.70 = 17,648.60 : x
  2. Step 2: Convert to fraction form
    26,979.80/40,469.70 = 17,648.60/x
  3. Step 3: Cross multiply
    26,979.80x = 40,469.70 × 17,648.60
  4. Step 4: Simplify right side
    26,979.80x = 714,233,547.42
  5. Step 5: Solve for x
    x = 714,233,547.42/26,979.80
  6. Step 6: Final answer
    x = 26,472.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.