Home / 20,860.65-31,293.05-6,069.69

Finding the Fourth Proportional to 20,860.65, 31,293.05 and 6,069.69

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Solution

The fourth proportional to 20,860.65, 31,293.05 and 6,069.69 is: 9,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.65 : 31,293.05 = 6,069.69 : x
  2. Step 2: Convert to fraction form
    20,860.65/31,293.05 = 6,069.69/x
  3. Step 3: Cross multiply
    20,860.65x = 31,293.05 × 6,069.69
  4. Step 4: Simplify right side
    20,860.65x = 189,939,082.31
  5. Step 5: Solve for x
    x = 189,939,082.31/20,860.65
  6. Step 6: Final answer
    x = 9,105.14

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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.