Home / 20,779.20-31,180.01-9,683.19

Finding the Fourth Proportional to 20,779.20, 31,180.01 and 9,683.19

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Solution

The fourth proportional to 20,779.20, 31,180.01 and 9,683.19 is: 14,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779.20 : 31,180.01 = 9,683.19 : x
  2. Step 2: Convert to fraction form
    20,779.20/31,180.01 = 9,683.19/x
  3. Step 3: Cross multiply
    20,779.20x = 31,180.01 × 9,683.19
  4. Step 4: Simplify right side
    20,779.20x = 301,921,912.62
  5. Step 5: Solve for x
    x = 301,921,912.62/20,779.20
  6. Step 6: Final answer
    x = 14,530.01

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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.