Home / 25,677.77-38,453.72-21,208.07

Finding the Fourth Proportional to 25,677.77, 38,453.72 and 21,208.07

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Solution

The fourth proportional to 25,677.77, 38,453.72 and 21,208.07 is: 31,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,677.77 : 38,453.72 = 21,208.07 : x
  2. Step 2: Convert to fraction form
    25,677.77/38,453.72 = 21,208.07/x
  3. Step 3: Cross multiply
    25,677.77x = 38,453.72 × 21,208.07
  4. Step 4: Simplify right side
    25,677.77x = 815,529,175.61
  5. Step 5: Solve for x
    x = 815,529,175.61/25,677.77
  6. Step 6: Final answer
    x = 31,760.13

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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.