Home / 36,981.75-55,446.65-12,960.18

Finding the Fourth Proportional to 36,981.75, 55,446.65 and 12,960.18

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Solution

The fourth proportional to 36,981.75, 55,446.65 and 12,960.18 is: 19,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.75 : 55,446.65 = 12,960.18 : x
  2. Step 2: Convert to fraction form
    36,981.75/55,446.65 = 12,960.18/x
  3. Step 3: Cross multiply
    36,981.75x = 55,446.65 × 12,960.18
  4. Step 4: Simplify right side
    36,981.75x = 718,598,499.60
  5. Step 5: Solve for x
    x = 718,598,499.60/36,981.75
  6. Step 6: Final answer
    x = 19,431.17

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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.