Home / 39,487.14-54,493.11-21,582.14

Finding the Fourth Proportional to 39,487.14, 54,493.11 and 21,582.14

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Solution

The fourth proportional to 39,487.14, 54,493.11 and 21,582.14 is: 29,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.14 : 54,493.11 = 21,582.14 : x
  2. Step 2: Convert to fraction form
    39,487.14/54,493.11 = 21,582.14/x
  3. Step 3: Cross multiply
    39,487.14x = 54,493.11 × 21,582.14
  4. Step 4: Simplify right side
    39,487.14x = 1,176,077,929.06
  5. Step 5: Solve for x
    x = 1,176,077,929.06/39,487.14
  6. Step 6: Final answer
    x = 29,783.82

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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.