Home / 20,569.48-30,855.42-5,779.55

Finding the Fourth Proportional to 20,569.48, 30,855.42 and 5,779.55

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Solution

The fourth proportional to 20,569.48, 30,855.42 and 5,779.55 is: 8,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.48 : 30,855.42 = 5,779.55 : x
  2. Step 2: Convert to fraction form
    20,569.48/30,855.42 = 5,779.55/x
  3. Step 3: Cross multiply
    20,569.48x = 30,855.42 × 5,779.55
  4. Step 4: Simplify right side
    20,569.48x = 178,330,442.66
  5. Step 5: Solve for x
    x = 178,330,442.66/20,569.48
  6. Step 6: Final answer
    x = 8,669.66

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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.