Home / 20,773.59-28,666.47-11,340.33

Finding the Fourth Proportional to 20,773.59, 28,666.47 and 11,340.33

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Solution

The fourth proportional to 20,773.59, 28,666.47 and 11,340.33 is: 15,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.59 : 28,666.47 = 11,340.33 : x
  2. Step 2: Convert to fraction form
    20,773.59/28,666.47 = 11,340.33/x
  3. Step 3: Cross multiply
    20,773.59x = 28,666.47 × 11,340.33
  4. Step 4: Simplify right side
    20,773.59x = 325,087,229.74
  5. Step 5: Solve for x
    x = 325,087,229.74/20,773.59
  6. Step 6: Final answer
    x = 15,649.06

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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.