Home / 21,700.80-32,551.20-6,118.56

Finding the Fourth Proportional to 21,700.80, 32,551.20 and 6,118.56

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Solution

The fourth proportional to 21,700.80, 32,551.20 and 6,118.56 is: 9,177.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.80 : 32,551.20 = 6,118.56 : x
  2. Step 2: Convert to fraction form
    21,700.80/32,551.20 = 6,118.56/x
  3. Step 3: Cross multiply
    21,700.80x = 32,551.20 × 6,118.56
  4. Step 4: Simplify right side
    21,700.80x = 199,166,470.27
  5. Step 5: Solve for x
    x = 199,166,470.27/21,700.80
  6. Step 6: Final answer
    x = 9,177.84

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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.