Home / 39,981.65-55,174.44-22,076.51

Finding the Fourth Proportional to 39,981.65, 55,174.44 and 22,076.51

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Solution

The fourth proportional to 39,981.65, 55,174.44 and 22,076.51 is: 30,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.65 : 55,174.44 = 22,076.51 : x
  2. Step 2: Convert to fraction form
    39,981.65/55,174.44 = 22,076.51/x
  3. Step 3: Cross multiply
    39,981.65x = 55,174.44 × 22,076.51
  4. Step 4: Simplify right side
    39,981.65x = 1,218,059,076.40
  5. Step 5: Solve for x
    x = 1,218,059,076.40/39,981.65
  6. Step 6: Final answer
    x = 30,465.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.