Home / 39,477.96-54,479.52-21,572.97

Finding the Fourth Proportional to 39,477.96, 54,479.52 and 21,572.97

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Solution

The fourth proportional to 39,477.96, 54,479.52 and 21,572.97 is: 29,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477.96 : 54,479.52 = 21,572.97 : x
  2. Step 2: Convert to fraction form
    39,477.96/54,479.52 = 21,572.97/x
  3. Step 3: Cross multiply
    39,477.96x = 54,479.52 × 21,572.97
  4. Step 4: Simplify right side
    39,477.96x = 1,175,285,050.57
  5. Step 5: Solve for x
    x = 1,175,285,050.57/39,477.96
  6. Step 6: Final answer
    x = 29,770.66

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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.