Home / 20,779.26-31,168.89-5,582.04

Finding the Fourth Proportional to 20,779.26, 31,168.89 and 5,582.04

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Solution

The fourth proportional to 20,779.26, 31,168.89 and 5,582.04 is: 8,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779.26 : 31,168.89 = 5,582.04 : x
  2. Step 2: Convert to fraction form
    20,779.26/31,168.89 = 5,582.04/x
  3. Step 3: Cross multiply
    20,779.26x = 31,168.89 × 5,582.04
  4. Step 4: Simplify right side
    20,779.26x = 173,985,990.74
  5. Step 5: Solve for x
    x = 173,985,990.74/20,779.26
  6. Step 6: Final answer
    x = 8,373.06

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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.