Home / 20,008.16-27,610.80-11,055.20

Finding the Fourth Proportional to 20,008.16, 27,610.80 and 11,055.20

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Solution

The fourth proportional to 20,008.16, 27,610.80 and 11,055.20 is: 15,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.16 : 27,610.80 = 11,055.20 : x
  2. Step 2: Convert to fraction form
    20,008.16/27,610.80 = 11,055.20/x
  3. Step 3: Cross multiply
    20,008.16x = 27,610.80 × 11,055.20
  4. Step 4: Simplify right side
    20,008.16x = 305,242,916.16
  5. Step 5: Solve for x
    x = 305,242,916.16/20,008.16
  6. Step 6: Final answer
    x = 15,255.92

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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.