Home / 20,748.10-31,106.31-10,367.14

Finding the Fourth Proportional to 20,748.10, 31,106.31 and 10,367.14

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Solution

The fourth proportional to 20,748.10, 31,106.31 and 10,367.14 is: 15,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.10 : 31,106.31 = 10,367.14 : x
  2. Step 2: Convert to fraction form
    20,748.10/31,106.31 = 10,367.14/x
  3. Step 3: Cross multiply
    20,748.10x = 31,106.31 × 10,367.14
  4. Step 4: Simplify right side
    20,748.10x = 322,483,470.65
  5. Step 5: Solve for x
    x = 322,483,470.65/20,748.10
  6. Step 6: Final answer
    x = 15,542.80

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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.