Home / 21,416.12-32,105.72-8,277.71

Finding the Fourth Proportional to 21,416.12, 32,105.72 and 8,277.71

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Solution

The fourth proportional to 21,416.12, 32,105.72 and 8,277.71 is: 12,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.12 : 32,105.72 = 8,277.71 : x
  2. Step 2: Convert to fraction form
    21,416.12/32,105.72 = 8,277.71/x
  3. Step 3: Cross multiply
    21,416.12x = 32,105.72 × 8,277.71
  4. Step 4: Simplify right side
    21,416.12x = 265,761,637.58
  5. Step 5: Solve for x
    x = 265,761,637.58/21,416.12
  6. Step 6: Final answer
    x = 12,409.42

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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.