Home / 28,080.24-38,750.60-15,504.90

Finding the Fourth Proportional to 28,080.24, 38,750.60 and 15,504.90

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Solution

The fourth proportional to 28,080.24, 38,750.60 and 15,504.90 is: 21,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.24 : 38,750.60 = 15,504.90 : x
  2. Step 2: Convert to fraction form
    28,080.24/38,750.60 = 15,504.90/x
  3. Step 3: Cross multiply
    28,080.24x = 38,750.60 × 15,504.90
  4. Step 4: Simplify right side
    28,080.24x = 600,824,177.94
  5. Step 5: Solve for x
    x = 600,824,177.94/28,080.24
  6. Step 6: Final answer
    x = 21,396.69

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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.