Home / 20,244.90-30,373.30-10,391.06

Finding the Fourth Proportional to 20,244.90, 30,373.30 and 10,391.06

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Solution

The fourth proportional to 20,244.90, 30,373.30 and 10,391.06 is: 15,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,244.90 : 30,373.30 = 10,391.06 : x
  2. Step 2: Convert to fraction form
    20,244.90/30,373.30 = 10,391.06/x
  3. Step 3: Cross multiply
    20,244.90x = 30,373.30 × 10,391.06
  4. Step 4: Simplify right side
    20,244.90x = 315,610,782.70
  5. Step 5: Solve for x
    x = 315,610,782.70/20,244.90
  6. Step 6: Final answer
    x = 15,589.64

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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.