Home / 39,905.84-55,070.04-22,911.18

Finding the Fourth Proportional to 39,905.84, 55,070.04 and 22,911.18

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Solution

The fourth proportional to 39,905.84, 55,070.04 and 22,911.18 is: 31,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.84 : 55,070.04 = 22,911.18 : x
  2. Step 2: Convert to fraction form
    39,905.84/55,070.04 = 22,911.18/x
  3. Step 3: Cross multiply
    39,905.84x = 55,070.04 × 22,911.18
  4. Step 4: Simplify right side
    39,905.84x = 1,261,719,809.70
  5. Step 5: Solve for x
    x = 1,261,719,809.70/39,905.84
  6. Step 6: Final answer
    x = 31,617.42

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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.