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Finding the Fourth Proportional to 21,779.58, 32,669.37 and 6,197.20

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Solution

The fourth proportional to 21,779.58, 32,669.37 and 6,197.20 is: 9,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.58 : 32,669.37 = 6,197.20 : x
  2. Step 2: Convert to fraction form
    21,779.58/32,669.37 = 6,197.20/x
  3. Step 3: Cross multiply
    21,779.58x = 32,669.37 × 6,197.20
  4. Step 4: Simplify right side
    21,779.58x = 202,458,619.76
  5. Step 5: Solve for x
    x = 202,458,619.76/21,779.58
  6. Step 6: Final answer
    x = 9,295.80

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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.