Home / 25,266.87-34,871.51-21,010.61

Finding the Fourth Proportional to 25,266.87, 34,871.51 and 21,010.61

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Solution

The fourth proportional to 25,266.87, 34,871.51 and 21,010.61 is: 28,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,266.87 : 34,871.51 = 21,010.61 : x
  2. Step 2: Convert to fraction form
    25,266.87/34,871.51 = 21,010.61/x
  3. Step 3: Cross multiply
    25,266.87x = 34,871.51 × 21,010.61
  4. Step 4: Simplify right side
    25,266.87x = 732,671,696.72
  5. Step 5: Solve for x
    x = 732,671,696.72/25,266.87
  6. Step 6: Final answer
    x = 28,997.33

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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.