Home / 22,359.12-30,856.36-12,288.48

Finding the Fourth Proportional to 22,359.12, 30,856.36 and 12,288.48

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Solution

The fourth proportional to 22,359.12, 30,856.36 and 12,288.48 is: 16,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,359.12 : 30,856.36 = 12,288.48 : x
  2. Step 2: Convert to fraction form
    22,359.12/30,856.36 = 12,288.48/x
  3. Step 3: Cross multiply
    22,359.12x = 30,856.36 × 12,288.48
  4. Step 4: Simplify right side
    22,359.12x = 379,177,762.73
  5. Step 5: Solve for x
    x = 379,177,762.73/22,359.12
  6. Step 6: Final answer
    x = 16,958.53

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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.