Home / 25,769.85-38,830.34-21,192.41

Finding the Fourth Proportional to 25,769.85, 38,830.34 and 21,192.41

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Solution

The fourth proportional to 25,769.85, 38,830.34 and 21,192.41 is: 31,932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,769.85 : 38,830.34 = 21,192.41 : x
  2. Step 2: Convert to fraction form
    25,769.85/38,830.34 = 21,192.41/x
  3. Step 3: Cross multiply
    25,769.85x = 38,830.34 × 21,192.41
  4. Step 4: Simplify right side
    25,769.85x = 822,908,485.72
  5. Step 5: Solve for x
    x = 822,908,485.72/25,769.85
  6. Step 6: Final answer
    x = 31,932.99

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.