Home / 18,759.06-28,151.96-13,841.55

Finding the Fourth Proportional to 18,759.06, 28,151.96 and 13,841.55

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Solution

The fourth proportional to 18,759.06, 28,151.96 and 13,841.55 is: 20,772.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.06 : 28,151.96 = 13,841.55 : x
  2. Step 2: Convert to fraction form
    18,759.06/28,151.96 = 13,841.55/x
  3. Step 3: Cross multiply
    18,759.06x = 28,151.96 × 13,841.55
  4. Step 4: Simplify right side
    18,759.06x = 389,666,692.73
  5. Step 5: Solve for x
    x = 389,666,692.73/18,759.06
  6. Step 6: Final answer
    x = 20,772.19

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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.