Home / 22,362.47-30,858.20-12,290.80

Finding the Fourth Proportional to 22,362.47, 30,858.20 and 12,290.80

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Solution

The fourth proportional to 22,362.47, 30,858.20 and 12,290.80 is: 16,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,362.47 : 30,858.20 = 12,290.80 : x
  2. Step 2: Convert to fraction form
    22,362.47/30,858.20 = 12,290.80/x
  3. Step 3: Cross multiply
    22,362.47x = 30,858.20 × 12,290.80
  4. Step 4: Simplify right side
    22,362.47x = 379,271,964.56
  5. Step 5: Solve for x
    x = 379,271,964.56/22,362.47
  6. Step 6: Final answer
    x = 16,960.20

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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.