Home / 22,345.95-30,836.20-12,786.03

Finding the Fourth Proportional to 22,345.95, 30,836.20 and 12,786.03

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Solution

The fourth proportional to 22,345.95, 30,836.20 and 12,786.03 is: 17,644.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,345.95 : 30,836.20 = 12,786.03 : x
  2. Step 2: Convert to fraction form
    22,345.95/30,836.20 = 12,786.03/x
  3. Step 3: Cross multiply
    22,345.95x = 30,836.20 × 12,786.03
  4. Step 4: Simplify right side
    22,345.95x = 394,272,578.29
  5. Step 5: Solve for x
    x = 394,272,578.29/22,345.95
  6. Step 6: Final answer
    x = 17,644.03

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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.