Home / 39,484.12-54,491.84-21,581.82

Finding the Fourth Proportional to 39,484.12, 54,491.84 and 21,581.82

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Solution

The fourth proportional to 39,484.12, 54,491.84 and 21,581.82 is: 29,784.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,484.12 : 54,491.84 = 21,581.82 : x
  2. Step 2: Convert to fraction form
    39,484.12/54,491.84 = 21,581.82/x
  3. Step 3: Cross multiply
    39,484.12x = 54,491.84 × 21,581.82
  4. Step 4: Simplify right side
    39,484.12x = 1,176,032,902.11
  5. Step 5: Solve for x
    x = 1,176,032,902.11/39,484.12
  6. Step 6: Final answer
    x = 29,784.96

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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.