Home / 20,773.51-28,666.11-11,342.05

Finding the Fourth Proportional to 20,773.51, 28,666.11 and 11,342.05

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Solution

The fourth proportional to 20,773.51, 28,666.11 and 11,342.05 is: 15,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.51 : 28,666.11 = 11,342.05 : x
  2. Step 2: Convert to fraction form
    20,773.51/28,666.11 = 11,342.05/x
  3. Step 3: Cross multiply
    20,773.51x = 28,666.11 × 11,342.05
  4. Step 4: Simplify right side
    20,773.51x = 325,132,452.93
  5. Step 5: Solve for x
    x = 325,132,452.93/20,773.51
  6. Step 6: Final answer
    x = 15,651.30

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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.