Home / 21,454.61-32,129.96-10,896.86

Finding the Fourth Proportional to 21,454.61, 32,129.96 and 10,896.86

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Solution

The fourth proportional to 21,454.61, 32,129.96 and 10,896.86 is: 16,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.61 : 32,129.96 = 10,896.86 : x
  2. Step 2: Convert to fraction form
    21,454.61/32,129.96 = 10,896.86/x
  3. Step 3: Cross multiply
    21,454.61x = 32,129.96 × 10,896.86
  4. Step 4: Simplify right side
    21,454.61x = 350,115,460.79
  5. Step 5: Solve for x
    x = 350,115,460.79/21,454.61
  6. Step 6: Final answer
    x = 16,318.90

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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.