Home / 28,443.86-42,695.85-15,974.54

Finding the Fourth Proportional to 28,443.86, 42,695.85 and 15,974.54

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Solution

The fourth proportional to 28,443.86, 42,695.85 and 15,974.54 is: 23,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.86 : 42,695.85 = 15,974.54 : x
  2. Step 2: Convert to fraction form
    28,443.86/42,695.85 = 15,974.54/x
  3. Step 3: Cross multiply
    28,443.86x = 42,695.85 × 15,974.54
  4. Step 4: Simplify right side
    28,443.86x = 682,046,563.66
  5. Step 5: Solve for x
    x = 682,046,563.66/28,443.86
  6. Step 6: Final answer
    x = 23,978.69

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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.