Home / 20,061.12-27,683.16-11,108.12

Finding the Fourth Proportional to 20,061.12, 27,683.16 and 11,108.12

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Solution

The fourth proportional to 20,061.12, 27,683.16 and 11,108.12 is: 15,328.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.12 : 27,683.16 = 11,108.12 : x
  2. Step 2: Convert to fraction form
    20,061.12/27,683.16 = 11,108.12/x
  3. Step 3: Cross multiply
    20,061.12x = 27,683.16 × 11,108.12
  4. Step 4: Simplify right side
    20,061.12x = 307,507,863.26
  5. Step 5: Solve for x
    x = 307,507,863.26/20,061.12
  6. Step 6: Final answer
    x = 15,328.55

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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.