Home / 28,323.38-39,086.33-15,750.56

Finding the Fourth Proportional to 28,323.38, 39,086.33 and 15,750.56

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Solution

The fourth proportional to 28,323.38, 39,086.33 and 15,750.56 is: 21,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.38 : 39,086.33 = 15,750.56 : x
  2. Step 2: Convert to fraction form
    28,323.38/39,086.33 = 15,750.56/x
  3. Step 3: Cross multiply
    28,323.38x = 39,086.33 × 15,750.56
  4. Step 4: Simplify right side
    28,323.38x = 615,631,311.66
  5. Step 5: Solve for x
    x = 615,631,311.66/28,323.38
  6. Step 6: Final answer
    x = 21,735.80

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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.