Home / 27,621.84-38,115.19-18,545.37

Finding the Fourth Proportional to 27,621.84, 38,115.19 and 18,545.37

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Solution

The fourth proportional to 27,621.84, 38,115.19 and 18,545.37 is: 25,590.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.84 : 38,115.19 = 18,545.37 : x
  2. Step 2: Convert to fraction form
    27,621.84/38,115.19 = 18,545.37/x
  3. Step 3: Cross multiply
    27,621.84x = 38,115.19 × 18,545.37
  4. Step 4: Simplify right side
    27,621.84x = 706,860,301.17
  5. Step 5: Solve for x
    x = 706,860,301.17/27,621.84
  6. Step 6: Final answer
    x = 25,590.63

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1.5x scale

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.