Home / 25,448.92-38,069.70-21,301.72

Finding the Fourth Proportional to 25,448.92, 38,069.70 and 21,301.72

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Solution

The fourth proportional to 25,448.92, 38,069.70 and 21,301.72 is: 31,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,448.92 : 38,069.70 = 21,301.72 : x
  2. Step 2: Convert to fraction form
    25,448.92/38,069.70 = 21,301.72/x
  3. Step 3: Cross multiply
    25,448.92x = 38,069.70 × 21,301.72
  4. Step 4: Simplify right side
    25,448.92x = 810,950,089.88
  5. Step 5: Solve for x
    x = 810,950,089.88/25,448.92
  6. Step 6: Final answer
    x = 31,865.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.