Home / 25,346.80-38,020.20-7,816.60

Finding the Fourth Proportional to 25,346.80, 38,020.20 and 7,816.60

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Solution

The fourth proportional to 25,346.80, 38,020.20 and 7,816.60 is: 11,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,346.80 : 38,020.20 = 7,816.60 : x
  2. Step 2: Convert to fraction form
    25,346.80/38,020.20 = 7,816.60/x
  3. Step 3: Cross multiply
    25,346.80x = 38,020.20 × 7,816.60
  4. Step 4: Simplify right side
    25,346.80x = 297,188,695.32
  5. Step 5: Solve for x
    x = 297,188,695.32/25,346.80
  6. Step 6: Final answer
    x = 11,724.90

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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.