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Finding the Fourth Proportional to 36,318.98, 54,376.98 and 19,619.18

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Solution

The fourth proportional to 36,318.98, 54,376.98 and 19,619.18 is: 29,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,318.98 : 54,376.98 = 19,619.18 : x
  2. Step 2: Convert to fraction form
    36,318.98/54,376.98 = 19,619.18/x
  3. Step 3: Cross multiply
    36,318.98x = 54,376.98 × 19,619.18
  4. Step 4: Simplify right side
    36,318.98x = 1,066,831,660.38
  5. Step 5: Solve for x
    x = 1,066,831,660.38/36,318.98
  6. Step 6: Final answer
    x = 29,373.95

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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.