Home / 36,822.50-55,233.78-9,120.50

Finding the Fourth Proportional to 36,822.50, 55,233.78 and 9,120.50

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Solution

The fourth proportional to 36,822.50, 55,233.78 and 9,120.50 is: 13,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,822.50 : 55,233.78 = 9,120.50 : x
  2. Step 2: Convert to fraction form
    36,822.50/55,233.78 = 9,120.50/x
  3. Step 3: Cross multiply
    36,822.50x = 55,233.78 × 9,120.50
  4. Step 4: Simplify right side
    36,822.50x = 503,759,690.49
  5. Step 5: Solve for x
    x = 503,759,690.49/36,822.50
  6. Step 6: Final answer
    x = 13,680.76

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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.