Home / 22,012.16-30,399.30-20,601.54

Finding the Fourth Proportional to 22,012.16, 30,399.30 and 20,601.54

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Solution

The fourth proportional to 22,012.16, 30,399.30 and 20,601.54 is: 28,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.16 : 30,399.30 = 20,601.54 : x
  2. Step 2: Convert to fraction form
    22,012.16/30,399.30 = 20,601.54/x
  3. Step 3: Cross multiply
    22,012.16x = 30,399.30 × 20,601.54
  4. Step 4: Simplify right side
    22,012.16x = 626,272,394.92
  5. Step 5: Solve for x
    x = 626,272,394.92/22,012.16
  6. Step 6: Final answer
    x = 28,451.21

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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.