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Finding the Fourth Proportional to 39,154, 54,032.58 and 22,387.36

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Solution

The fourth proportional to 39,154, 54,032.58 and 22,387.36 is: 30,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154 : 54,032.58 = 22,387.36 : x
  2. Step 2: Convert to fraction form
    39,154/54,032.58 = 22,387.36/x
  3. Step 3: Cross multiply
    39,154x = 54,032.58 × 22,387.36
  4. Step 4: Simplify right side
    39,154x = 1,209,646,820.19
  5. Step 5: Solve for x
    x = 1,209,646,820.19/39,154
  6. Step 6: Final answer
    x = 30,894.59

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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.