Home / 39,684.10-59,528.32-11,981.38

Finding the Fourth Proportional to 39,684.10, 59,528.32 and 11,981.38

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Solution

The fourth proportional to 39,684.10, 59,528.32 and 11,981.38 is: 17,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,684.10 : 59,528.32 = 11,981.38 : x
  2. Step 2: Convert to fraction form
    39,684.10/59,528.32 = 11,981.38/x
  3. Step 3: Cross multiply
    39,684.10x = 59,528.32 × 11,981.38
  4. Step 4: Simplify right side
    39,684.10x = 713,231,422.68
  5. Step 5: Solve for x
    x = 713,231,422.68/39,684.10
  6. Step 6: Final answer
    x = 17,972.73

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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.