Home / 20,454.85-30,701.72-10,601.20

Finding the Fourth Proportional to 20,454.85, 30,701.72 and 10,601.20

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Solution

The fourth proportional to 20,454.85, 30,701.72 and 10,601.20 is: 15,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.85 : 30,701.72 = 10,601.20 : x
  2. Step 2: Convert to fraction form
    20,454.85/30,701.72 = 10,601.20/x
  3. Step 3: Cross multiply
    20,454.85x = 30,701.72 × 10,601.20
  4. Step 4: Simplify right side
    20,454.85x = 325,475,074.06
  5. Step 5: Solve for x
    x = 325,475,074.06/20,454.85
  6. Step 6: Final answer
    x = 15,911.88

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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.