Home / 22,360.64-30,856.18-12,288.86

Finding the Fourth Proportional to 22,360.64, 30,856.18 and 12,288.86

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Solution

The fourth proportional to 22,360.64, 30,856.18 and 12,288.86 is: 16,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.64 : 30,856.18 = 12,288.86 : x
  2. Step 2: Convert to fraction form
    22,360.64/30,856.18 = 12,288.86/x
  3. Step 3: Cross multiply
    22,360.64x = 30,856.18 × 12,288.86
  4. Step 4: Simplify right side
    22,360.64x = 379,187,091.15
  5. Step 5: Solve for x
    x = 379,187,091.15/22,360.64
  6. Step 6: Final answer
    x = 16,957.80

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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.