Home / 21,155.76-29,195.27-11,595.57

Finding the Fourth Proportional to 21,155.76, 29,195.27 and 11,595.57

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Solution

The fourth proportional to 21,155.76, 29,195.27 and 11,595.57 is: 16,002.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.76 : 29,195.27 = 11,595.57 : x
  2. Step 2: Convert to fraction form
    21,155.76/29,195.27 = 11,595.57/x
  3. Step 3: Cross multiply
    21,155.76x = 29,195.27 × 11,595.57
  4. Step 4: Simplify right side
    21,155.76x = 338,535,796.95
  5. Step 5: Solve for x
    x = 338,535,796.95/21,155.76
  6. Step 6: Final answer
    x = 16,002.06

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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.