Home / 40,844.39-61,274.78-18,651.80

Finding the Fourth Proportional to 40,844.39, 61,274.78 and 18,651.80

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Solution

The fourth proportional to 40,844.39, 61,274.78 and 18,651.80 is: 27,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,844.39 : 61,274.78 = 18,651.80 : x
  2. Step 2: Convert to fraction form
    40,844.39/61,274.78 = 18,651.80/x
  3. Step 3: Cross multiply
    40,844.39x = 61,274.78 × 18,651.80
  4. Step 4: Simplify right side
    40,844.39x = 1,142,885,071.48
  5. Step 5: Solve for x
    x = 1,142,885,071.48/40,844.39
  6. Step 6: Final answer
    x = 27,981.45

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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.