Home / 21,805.12-32,700.12-6,218.56

Finding the Fourth Proportional to 21,805.12, 32,700.12 and 6,218.56

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Solution

The fourth proportional to 21,805.12, 32,700.12 and 6,218.56 is: 9,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805.12 : 32,700.12 = 6,218.56 : x
  2. Step 2: Convert to fraction form
    21,805.12/32,700.12 = 6,218.56/x
  3. Step 3: Cross multiply
    21,805.12x = 32,700.12 × 6,218.56
  4. Step 4: Simplify right side
    21,805.12x = 203,347,658.23
  5. Step 5: Solve for x
    x = 203,347,658.23/21,805.12
  6. Step 6: Final answer
    x = 9,325.68

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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.