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Finding the Fourth Proportional to 21,559.66, 32,342.92 and 6,765.08

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Solution

The fourth proportional to 21,559.66, 32,342.92 and 6,765.08 is: 10,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.66 : 32,342.92 = 6,765.08 : x
  2. Step 2: Convert to fraction form
    21,559.66/32,342.92 = 6,765.08/x
  3. Step 3: Cross multiply
    21,559.66x = 32,342.92 × 6,765.08
  4. Step 4: Simplify right side
    21,559.66x = 218,802,262.61
  5. Step 5: Solve for x
    x = 218,802,262.61/21,559.66
  6. Step 6: Final answer
    x = 10,148.69

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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.