Home / 51,047.82-76,571.69-15,990.21

Finding the Fourth Proportional to 51,047.82, 76,571.69 and 15,990.21

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Solution

The fourth proportional to 51,047.82, 76,571.69 and 15,990.21 is: 23,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,047.82 : 76,571.69 = 15,990.21 : x
  2. Step 2: Convert to fraction form
    51,047.82/76,571.69 = 15,990.21/x
  3. Step 3: Cross multiply
    51,047.82x = 76,571.69 × 15,990.21
  4. Step 4: Simplify right side
    51,047.82x = 1,224,397,323.20
  5. Step 5: Solve for x
    x = 1,224,397,323.20/51,047.82
  6. Step 6: Final answer
    x = 23,985.30

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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.