Home / 22,475.85-31,010.27-13,518.87

Finding the Fourth Proportional to 22,475.85, 31,010.27 and 13,518.87

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Solution

The fourth proportional to 22,475.85, 31,010.27 and 13,518.87 is: 18,652.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,475.85 : 31,010.27 = 13,518.87 : x
  2. Step 2: Convert to fraction form
    22,475.85/31,010.27 = 13,518.87/x
  3. Step 3: Cross multiply
    22,475.85x = 31,010.27 × 13,518.87
  4. Step 4: Simplify right side
    22,475.85x = 419,223,687.54
  5. Step 5: Solve for x
    x = 419,223,687.54/22,475.85
  6. Step 6: Final answer
    x = 18,652.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.