Home / 20,061.18-27,684.85-10,986.92

Finding the Fourth Proportional to 20,061.18, 27,684.85 and 10,986.92

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Solution

The fourth proportional to 20,061.18, 27,684.85 and 10,986.92 is: 15,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.18 : 27,684.85 = 10,986.92 : x
  2. Step 2: Convert to fraction form
    20,061.18/27,684.85 = 10,986.92/x
  3. Step 3: Cross multiply
    20,061.18x = 27,684.85 × 10,986.92
  4. Step 4: Simplify right side
    20,061.18x = 304,171,232.16
  5. Step 5: Solve for x
    x = 304,171,232.16/20,061.18
  6. Step 6: Final answer
    x = 15,162.18

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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.