Home / 21,601.56-32,406.86-9,121.62

Finding the Fourth Proportional to 21,601.56, 32,406.86 and 9,121.62

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Solution

The fourth proportional to 21,601.56, 32,406.86 and 9,121.62 is: 13,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.56 : 32,406.86 = 9,121.62 : x
  2. Step 2: Convert to fraction form
    21,601.56/32,406.86 = 9,121.62/x
  3. Step 3: Cross multiply
    21,601.56x = 32,406.86 × 9,121.62
  4. Step 4: Simplify right side
    21,601.56x = 295,603,062.31
  5. Step 5: Solve for x
    x = 295,603,062.31/21,601.56
  6. Step 6: Final answer
    x = 13,684.34

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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.