Home / 21,849.35-30,152.05-12,417.91

Finding the Fourth Proportional to 21,849.35, 30,152.05 and 12,417.91

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Solution

The fourth proportional to 21,849.35, 30,152.05 and 12,417.91 is: 17,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,849.35 : 30,152.05 = 12,417.91 : x
  2. Step 2: Convert to fraction form
    21,849.35/30,152.05 = 12,417.91/x
  3. Step 3: Cross multiply
    21,849.35x = 30,152.05 × 12,417.91
  4. Step 4: Simplify right side
    21,849.35x = 374,425,336.79
  5. Step 5: Solve for x
    x = 374,425,336.79/21,849.35
  6. Step 6: Final answer
    x = 17,136.68

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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.