Home / 20,053.24-27,672.85-11,555.13

Finding the Fourth Proportional to 20,053.24, 27,672.85 and 11,555.13

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Solution

The fourth proportional to 20,053.24, 27,672.85 and 11,555.13 is: 15,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.24 : 27,672.85 = 11,555.13 : x
  2. Step 2: Convert to fraction form
    20,053.24/27,672.85 = 11,555.13/x
  3. Step 3: Cross multiply
    20,053.24x = 27,672.85 × 11,555.13
  4. Step 4: Simplify right side
    20,053.24x = 319,763,289.89
  5. Step 5: Solve for x
    x = 319,763,289.89/20,053.24
  6. Step 6: Final answer
    x = 15,945.72

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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.