Home / 21,652.19-32,479.17-6,860.78

Finding the Fourth Proportional to 21,652.19, 32,479.17 and 6,860.78

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Solution

The fourth proportional to 21,652.19, 32,479.17 and 6,860.78 is: 10,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.19 : 32,479.17 = 6,860.78 : x
  2. Step 2: Convert to fraction form
    21,652.19/32,479.17 = 6,860.78/x
  3. Step 3: Cross multiply
    21,652.19x = 32,479.17 × 6,860.78
  4. Step 4: Simplify right side
    21,652.19x = 222,832,439.95
  5. Step 5: Solve for x
    x = 222,832,439.95/21,652.19
  6. Step 6: Final answer
    x = 10,291.45

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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.