Home / 39,583.80-54,624.92-21,678.35

Finding the Fourth Proportional to 39,583.80, 54,624.92 and 21,678.35

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Solution

The fourth proportional to 39,583.80, 54,624.92 and 21,678.35 is: 29,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,583.80 : 54,624.92 = 21,678.35 : x
  2. Step 2: Convert to fraction form
    39,583.80/54,624.92 = 21,678.35/x
  3. Step 3: Cross multiply
    39,583.80x = 54,624.92 × 21,678.35
  4. Step 4: Simplify right side
    39,583.80x = 1,184,177,752.97
  5. Step 5: Solve for x
    x = 1,184,177,752.97/39,583.80
  6. Step 6: Final answer
    x = 29,915.72

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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.