Home / 22,043.76-30,420.12-12,483.36

Finding the Fourth Proportional to 22,043.76, 30,420.12 and 12,483.36

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Solution

The fourth proportional to 22,043.76, 30,420.12 and 12,483.36 is: 17,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.76 : 30,420.12 = 12,483.36 : x
  2. Step 2: Convert to fraction form
    22,043.76/30,420.12 = 12,483.36/x
  3. Step 3: Cross multiply
    22,043.76x = 30,420.12 × 12,483.36
  4. Step 4: Simplify right side
    22,043.76x = 379,745,309.20
  5. Step 5: Solve for x
    x = 379,745,309.20/22,043.76
  6. Step 6: Final answer
    x = 17,226.88

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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.