Home / 20,773.98-28,651.92-18,386.52

Finding the Fourth Proportional to 20,773.98, 28,651.92 and 18,386.52

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Solution

The fourth proportional to 20,773.98, 28,651.92 and 18,386.52 is: 25,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.98 : 28,651.92 = 18,386.52 : x
  2. Step 2: Convert to fraction form
    20,773.98/28,651.92 = 18,386.52/x
  3. Step 3: Cross multiply
    20,773.98x = 28,651.92 × 18,386.52
  4. Step 4: Simplify right side
    20,773.98x = 526,809,100.12
  5. Step 5: Solve for x
    x = 526,809,100.12/20,773.98
  6. Step 6: Final answer
    x = 25,359.08

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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.