Home / 28,375.02-39,150.27-15,797.34

Finding the Fourth Proportional to 28,375.02, 39,150.27 and 15,797.34

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Solution

The fourth proportional to 28,375.02, 39,150.27 and 15,797.34 is: 21,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.02 : 39,150.27 = 15,797.34 : x
  2. Step 2: Convert to fraction form
    28,375.02/39,150.27 = 15,797.34/x
  3. Step 3: Cross multiply
    28,375.02x = 39,150.27 × 15,797.34
  4. Step 4: Simplify right side
    28,375.02x = 618,470,126.28
  5. Step 5: Solve for x
    x = 618,470,126.28/28,375.02
  6. Step 6: Final answer
    x = 21,796.29

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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.