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Finding the Fourth Proportional to 21,565.44, 32,348.12 and 6,775.47

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Solution

The fourth proportional to 21,565.44, 32,348.12 and 6,775.47 is: 10,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.44 : 32,348.12 = 6,775.47 : x
  2. Step 2: Convert to fraction form
    21,565.44/32,348.12 = 6,775.47/x
  3. Step 3: Cross multiply
    21,565.44x = 32,348.12 × 6,775.47
  4. Step 4: Simplify right side
    21,565.44x = 219,173,682.74
  5. Step 5: Solve for x
    x = 219,173,682.74/21,565.44
  6. Step 6: Final answer
    x = 10,163.19

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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.