Home / 21,445.20-32,170.91-6,655.31

Finding the Fourth Proportional to 21,445.20, 32,170.91 and 6,655.31

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Solution

The fourth proportional to 21,445.20, 32,170.91 and 6,655.31 is: 9,983.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.20 : 32,170.91 = 6,655.31 : x
  2. Step 2: Convert to fraction form
    21,445.20/32,170.91 = 6,655.31/x
  3. Step 3: Cross multiply
    21,445.20x = 32,170.91 × 6,655.31
  4. Step 4: Simplify right side
    21,445.20x = 214,107,305.54
  5. Step 5: Solve for x
    x = 214,107,305.54/21,445.20
  6. Step 6: Final answer
    x = 9,983.93

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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.