Home / 28,023.16-42,006.38-18,168.70

Finding the Fourth Proportional to 28,023.16, 42,006.38 and 18,168.70

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Solution

The fourth proportional to 28,023.16, 42,006.38 and 18,168.70 is: 27,234.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.16 : 42,006.38 = 18,168.70 : x
  2. Step 2: Convert to fraction form
    28,023.16/42,006.38 = 18,168.70/x
  3. Step 3: Cross multiply
    28,023.16x = 42,006.38 × 18,168.70
  4. Step 4: Simplify right side
    28,023.16x = 763,201,316.31
  5. Step 5: Solve for x
    x = 763,201,316.31/28,023.16
  6. Step 6: Final answer
    x = 27,234.66

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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.