Home / 25,149.60-37,724.40-7,620.30

Finding the Fourth Proportional to 25,149.60, 37,724.40 and 7,620.30

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Solution

The fourth proportional to 25,149.60, 37,724.40 and 7,620.30 is: 11,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,149.60 : 37,724.40 = 7,620.30 : x
  2. Step 2: Convert to fraction form
    25,149.60/37,724.40 = 7,620.30/x
  3. Step 3: Cross multiply
    25,149.60x = 37,724.40 × 7,620.30
  4. Step 4: Simplify right side
    25,149.60x = 287,471,245.32
  5. Step 5: Solve for x
    x = 287,471,245.32/25,149.60
  6. Step 6: Final answer
    x = 11,430.45

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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.