Home / 21,083.57-31,625.35-5,501.06

Finding the Fourth Proportional to 21,083.57, 31,625.35 and 5,501.06

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Solution

The fourth proportional to 21,083.57, 31,625.35 and 5,501.06 is: 8,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.57 : 31,625.35 = 5,501.06 : x
  2. Step 2: Convert to fraction form
    21,083.57/31,625.35 = 5,501.06/x
  3. Step 3: Cross multiply
    21,083.57x = 31,625.35 × 5,501.06
  4. Step 4: Simplify right side
    21,083.57x = 173,972,775.99
  5. Step 5: Solve for x
    x = 173,972,775.99/21,083.57
  6. Step 6: Final answer
    x = 8,251.58

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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.