Home / 21,255.42-32,024.94-19,256.61

Finding the Fourth Proportional to 21,255.42, 32,024.94 and 19,256.61

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Solution

The fourth proportional to 21,255.42, 32,024.94 and 19,256.61 is: 29,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.42 : 32,024.94 = 19,256.61 : x
  2. Step 2: Convert to fraction form
    21,255.42/32,024.94 = 19,256.61/x
  3. Step 3: Cross multiply
    21,255.42x = 32,024.94 × 19,256.61
  4. Step 4: Simplify right side
    21,255.42x = 616,691,779.85
  5. Step 5: Solve for x
    x = 616,691,779.85/21,255.42
  6. Step 6: Final answer
    x = 29,013.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.