Home / 28,255.16-38,997.50-18,695.24

Finding the Fourth Proportional to 28,255.16, 38,997.50 and 18,695.24

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Solution

The fourth proportional to 28,255.16, 38,997.50 and 18,695.24 is: 25,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.16 : 38,997.50 = 18,695.24 : x
  2. Step 2: Convert to fraction form
    28,255.16/38,997.50 = 18,695.24/x
  3. Step 3: Cross multiply
    28,255.16x = 38,997.50 × 18,695.24
  4. Step 4: Simplify right side
    28,255.16x = 729,067,333.44
  5. Step 5: Solve for x
    x = 729,067,333.44/28,255.16
  6. Step 6: Final answer
    x = 25,802.98

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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.