Home / 21,557.03-32,272.94-13,211.80

Finding the Fourth Proportional to 21,557.03, 32,272.94 and 13,211.80

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Solution

The fourth proportional to 21,557.03, 32,272.94 and 13,211.80 is: 19,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.03 : 32,272.94 = 13,211.80 : x
  2. Step 2: Convert to fraction form
    21,557.03/32,272.94 = 13,211.80/x
  3. Step 3: Cross multiply
    21,557.03x = 32,272.94 × 13,211.80
  4. Step 4: Simplify right side
    21,557.03x = 426,383,562.63
  5. Step 5: Solve for x
    x = 426,383,562.63/21,557.03
  6. Step 6: Final answer
    x = 19,779.33

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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.