Home / 20,020.15-27,625.55-11,065.40

Finding the Fourth Proportional to 20,020.15, 27,625.55 and 11,065.40

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Solution

The fourth proportional to 20,020.15, 27,625.55 and 11,065.40 is: 15,269.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.15 : 27,625.55 = 11,065.40 : x
  2. Step 2: Convert to fraction form
    20,020.15/27,625.55 = 11,065.40/x
  3. Step 3: Cross multiply
    20,020.15x = 27,625.55 × 11,065.40
  4. Step 4: Simplify right side
    20,020.15x = 305,687,760.97
  5. Step 5: Solve for x
    x = 305,687,760.97/20,020.15
  6. Step 6: Final answer
    x = 15,269.00

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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.