Home / 25,490.32-38,235.18-7,960.28

Finding the Fourth Proportional to 25,490.32, 38,235.18 and 7,960.28

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Solution

The fourth proportional to 25,490.32, 38,235.18 and 7,960.28 is: 11,940.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,490.32 : 38,235.18 = 7,960.28 : x
  2. Step 2: Convert to fraction form
    25,490.32/38,235.18 = 7,960.28/x
  3. Step 3: Cross multiply
    25,490.32x = 38,235.18 × 7,960.28
  4. Step 4: Simplify right side
    25,490.32x = 304,362,738.65
  5. Step 5: Solve for x
    x = 304,362,738.65/25,490.32
  6. Step 6: Final answer
    x = 11,940.33

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Double scale
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Similar ratio
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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.