Home / 18,825.02-28,232.42-8,155.05

Finding the Fourth Proportional to 18,825.02, 28,232.42 and 8,155.05

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Solution

The fourth proportional to 18,825.02, 28,232.42 and 8,155.05 is: 12,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.02 : 28,232.42 = 8,155.05 : x
  2. Step 2: Convert to fraction form
    18,825.02/28,232.42 = 8,155.05/x
  3. Step 3: Cross multiply
    18,825.02x = 28,232.42 × 8,155.05
  4. Step 4: Simplify right side
    18,825.02x = 230,236,650.07
  5. Step 5: Solve for x
    x = 230,236,650.07/18,825.02
  6. Step 6: Final answer
    x = 12,230.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.