Home / 20,111.24-27,752.90-11,158.94

Finding the Fourth Proportional to 20,111.24, 27,752.90 and 11,158.94

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Solution

The fourth proportional to 20,111.24, 27,752.90 and 11,158.94 is: 15,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.24 : 27,752.90 = 11,158.94 : x
  2. Step 2: Convert to fraction form
    20,111.24/27,752.90 = 11,158.94/x
  3. Step 3: Cross multiply
    20,111.24x = 27,752.90 × 11,158.94
  4. Step 4: Simplify right side
    20,111.24x = 309,692,945.93
  5. Step 5: Solve for x
    x = 309,692,945.93/20,111.24
  6. Step 6: Final answer
    x = 15,399.00

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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.