Home / 39,624.90-54,680.27-21,719.54

Finding the Fourth Proportional to 39,624.90, 54,680.27 and 21,719.54

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Solution

The fourth proportional to 39,624.90, 54,680.27 and 21,719.54 is: 29,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.90 : 54,680.27 = 21,719.54 : x
  2. Step 2: Convert to fraction form
    39,624.90/54,680.27 = 21,719.54/x
  3. Step 3: Cross multiply
    39,624.90x = 54,680.27 × 21,719.54
  4. Step 4: Simplify right side
    39,624.90x = 1,187,630,339.58
  5. Step 5: Solve for x
    x = 1,187,630,339.58/39,624.90
  6. Step 6: Final answer
    x = 29,971.82

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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.