Home / 28,520.33-39,357.36-15,773.18

Finding the Fourth Proportional to 28,520.33, 39,357.36 and 15,773.18

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Solution

The fourth proportional to 28,520.33, 39,357.36 and 15,773.18 is: 21,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.33 : 39,357.36 = 15,773.18 : x
  2. Step 2: Convert to fraction form
    28,520.33/39,357.36 = 15,773.18/x
  3. Step 3: Cross multiply
    28,520.33x = 39,357.36 × 15,773.18
  4. Step 4: Simplify right side
    28,520.33x = 620,790,526.82
  5. Step 5: Solve for x
    x = 620,790,526.82/28,520.33
  6. Step 6: Final answer
    x = 21,766.60

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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.