Home / 35,678.34-53,517.51-11,981.39

Finding the Fourth Proportional to 35,678.34, 53,517.51 and 11,981.39

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Solution

The fourth proportional to 35,678.34, 53,517.51 and 11,981.39 is: 17,972.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,678.34 : 53,517.51 = 11,981.39 : x
  2. Step 2: Convert to fraction form
    35,678.34/53,517.51 = 11,981.39/x
  3. Step 3: Cross multiply
    35,678.34x = 53,517.51 × 11,981.39
  4. Step 4: Simplify right side
    35,678.34x = 641,213,891.55
  5. Step 5: Solve for x
    x = 641,213,891.55/35,678.34
  6. Step 6: Final answer
    x = 17,972.08

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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.