Home / 28,122.50-42,183.73-25,775.90

Finding the Fourth Proportional to 28,122.50, 42,183.73 and 25,775.90

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Solution

The fourth proportional to 28,122.50, 42,183.73 and 25,775.90 is: 38,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.50 : 42,183.73 = 25,775.90 : x
  2. Step 2: Convert to fraction form
    28,122.50/42,183.73 = 25,775.90/x
  3. Step 3: Cross multiply
    28,122.50x = 42,183.73 × 25,775.90
  4. Step 4: Simplify right side
    28,122.50x = 1,087,323,647.13
  5. Step 5: Solve for x
    x = 1,087,323,647.13/28,122.50
  6. Step 6: Final answer
    x = 38,663.84

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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.