Home / 39,162.96-54,045.16-21,257.97

Finding the Fourth Proportional to 39,162.96, 54,045.16 and 21,257.97

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Solution

The fourth proportional to 39,162.96, 54,045.16 and 21,257.97 is: 29,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,162.96 : 54,045.16 = 21,257.97 : x
  2. Step 2: Convert to fraction form
    39,162.96/54,045.16 = 21,257.97/x
  3. Step 3: Cross multiply
    39,162.96x = 54,045.16 × 21,257.97
  4. Step 4: Simplify right side
    39,162.96x = 1,148,890,389.93
  5. Step 5: Solve for x
    x = 1,148,890,389.93/39,162.96
  6. Step 6: Final answer
    x = 29,336.15

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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.