Home / 28,608.30-42,912.45-18,110.70

Finding the Fourth Proportional to 28,608.30, 42,912.45 and 18,110.70

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Solution

The fourth proportional to 28,608.30, 42,912.45 and 18,110.70 is: 27,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.30 : 42,912.45 = 18,110.70 : x
  2. Step 2: Convert to fraction form
    28,608.30/42,912.45 = 18,110.70/x
  3. Step 3: Cross multiply
    28,608.30x = 42,912.45 × 18,110.70
  4. Step 4: Simplify right side
    28,608.30x = 777,174,508.22
  5. Step 5: Solve for x
    x = 777,174,508.22/28,608.30
  6. Step 6: Final answer
    x = 27,166.05

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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.