Home / 22,228.50-30,675.21-12,156.76

Finding the Fourth Proportional to 22,228.50, 30,675.21 and 12,156.76

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Solution

The fourth proportional to 22,228.50, 30,675.21 and 12,156.76 is: 16,776.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.50 : 30,675.21 = 12,156.76 : x
  2. Step 2: Convert to fraction form
    22,228.50/30,675.21 = 12,156.76/x
  3. Step 3: Cross multiply
    22,228.50x = 30,675.21 × 12,156.76
  4. Step 4: Simplify right side
    22,228.50x = 372,911,165.92
  5. Step 5: Solve for x
    x = 372,911,165.92/22,228.50
  6. Step 6: Final answer
    x = 16,776.26

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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.