Home / 21,425.10-32,134.48-12,544.52

Finding the Fourth Proportional to 21,425.10, 32,134.48 and 12,544.52

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Solution

The fourth proportional to 21,425.10, 32,134.48 and 12,544.52 is: 18,814.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.10 : 32,134.48 = 12,544.52 : x
  2. Step 2: Convert to fraction form
    21,425.10/32,134.48 = 12,544.52/x
  3. Step 3: Cross multiply
    21,425.10x = 32,134.48 × 12,544.52
  4. Step 4: Simplify right side
    21,425.10x = 403,111,627.05
  5. Step 5: Solve for x
    x = 403,111,627.05/21,425.10
  6. Step 6: Final answer
    x = 18,814.92

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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.