Home / 22,182-30,607.68-12,748.80

Finding the Fourth Proportional to 22,182, 30,607.68 and 12,748.80

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Solution

The fourth proportional to 22,182, 30,607.68 and 12,748.80 is: 17,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,182 : 30,607.68 = 12,748.80 : x
  2. Step 2: Convert to fraction form
    22,182/30,607.68 = 12,748.80/x
  3. Step 3: Cross multiply
    22,182x = 30,607.68 × 12,748.80
  4. Step 4: Simplify right side
    22,182x = 390,211,190.78
  5. Step 5: Solve for x
    x = 390,211,190.78/22,182
  6. Step 6: Final answer
    x = 17,591.34

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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.