Home / 21,447.12-32,125.86-21,184.68

Finding the Fourth Proportional to 21,447.12, 32,125.86 and 21,184.68

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Solution

The fourth proportional to 21,447.12, 32,125.86 and 21,184.68 is: 31,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.12 : 32,125.86 = 21,184.68 : x
  2. Step 2: Convert to fraction form
    21,447.12/32,125.86 = 21,184.68/x
  3. Step 3: Cross multiply
    21,447.12x = 32,125.86 × 21,184.68
  4. Step 4: Simplify right side
    21,447.12x = 680,576,063.82
  5. Step 5: Solve for x
    x = 680,576,063.82/21,447.12
  6. Step 6: Final answer
    x = 31,732.75

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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.