Home / 20,773.95-31,160.97-11,559.39

Finding the Fourth Proportional to 20,773.95, 31,160.97 and 11,559.39

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Solution

The fourth proportional to 20,773.95, 31,160.97 and 11,559.39 is: 17,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.95 : 31,160.97 = 11,559.39 : x
  2. Step 2: Convert to fraction form
    20,773.95/31,160.97 = 11,559.39/x
  3. Step 3: Cross multiply
    20,773.95x = 31,160.97 × 11,559.39
  4. Step 4: Simplify right side
    20,773.95x = 360,201,805.01
  5. Step 5: Solve for x
    x = 360,201,805.01/20,773.95
  6. Step 6: Final answer
    x = 17,339.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.