Home / 21,849.19-30,151.91-12,417.75

Finding the Fourth Proportional to 21,849.19, 30,151.91 and 12,417.75

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Solution

The fourth proportional to 21,849.19, 30,151.91 and 12,417.75 is: 17,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,849.19 : 30,151.91 = 12,417.75 : x
  2. Step 2: Convert to fraction form
    21,849.19/30,151.91 = 12,417.75/x
  3. Step 3: Cross multiply
    21,849.19x = 30,151.91 × 12,417.75
  4. Step 4: Simplify right side
    21,849.19x = 374,418,911.45
  5. Step 5: Solve for x
    x = 374,418,911.45/21,849.19
  6. Step 6: Final answer
    x = 17,136.51

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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.