Home / 39,624.75-54,683.52-21,719.73

Finding the Fourth Proportional to 39,624.75, 54,683.52 and 21,719.73

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Solution

The fourth proportional to 39,624.75, 54,683.52 and 21,719.73 is: 29,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.75 : 54,683.52 = 21,719.73 : x
  2. Step 2: Convert to fraction form
    39,624.75/54,683.52 = 21,719.73/x
  3. Step 3: Cross multiply
    39,624.75x = 54,683.52 × 21,719.73
  4. Step 4: Simplify right side
    39,624.75x = 1,187,711,289.85
  5. Step 5: Solve for x
    x = 1,187,711,289.85/39,624.75
  6. Step 6: Final answer
    x = 29,973.98

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1.5x scale

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.