Home / 22,228.32-30,674.64-12,156.48

Finding the Fourth Proportional to 22,228.32, 30,674.64 and 12,156.48

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Solution

The fourth proportional to 22,228.32, 30,674.64 and 12,156.48 is: 16,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.32 : 30,674.64 = 12,156.48 : x
  2. Step 2: Convert to fraction form
    22,228.32/30,674.64 = 12,156.48/x
  3. Step 3: Cross multiply
    22,228.32x = 30,674.64 × 12,156.48
  4. Step 4: Simplify right side
    22,228.32x = 372,895,647.67
  5. Step 5: Solve for x
    x = 372,895,647.67/22,228.32
  6. Step 6: Final answer
    x = 16,775.70

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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.