Home / 21,454.67-32,185.45-6,660.12

Finding the Fourth Proportional to 21,454.67, 32,185.45 and 6,660.12

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Solution

The fourth proportional to 21,454.67, 32,185.45 and 6,660.12 is: 9,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.67 : 32,185.45 = 6,660.12 : x
  2. Step 2: Convert to fraction form
    21,454.67/32,185.45 = 6,660.12/x
  3. Step 3: Cross multiply
    21,454.67x = 32,185.45 × 6,660.12
  4. Step 4: Simplify right side
    21,454.67x = 214,359,088.27
  5. Step 5: Solve for x
    x = 214,359,088.27/21,454.67
  6. Step 6: Final answer
    x = 9,991.25

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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.