Home / 20,652.72-31,010.67-18,208.14

Finding the Fourth Proportional to 20,652.72, 31,010.67 and 18,208.14

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Solution

The fourth proportional to 20,652.72, 31,010.67 and 18,208.14 is: 27,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.72 : 31,010.67 = 18,208.14 : x
  2. Step 2: Convert to fraction form
    20,652.72/31,010.67 = 18,208.14/x
  3. Step 3: Cross multiply
    20,652.72x = 31,010.67 × 18,208.14
  4. Step 4: Simplify right side
    20,652.72x = 564,646,620.85
  5. Step 5: Solve for x
    x = 564,646,620.85/20,652.72
  6. Step 6: Final answer
    x = 27,340.06

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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.