Home / 22,360.98-30,856.14-12,289.30

Finding the Fourth Proportional to 22,360.98, 30,856.14 and 12,289.30

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Solution

The fourth proportional to 22,360.98, 30,856.14 and 12,289.30 is: 16,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.98 : 30,856.14 = 12,289.30 : x
  2. Step 2: Convert to fraction form
    22,360.98/30,856.14 = 12,289.30/x
  3. Step 3: Cross multiply
    22,360.98x = 30,856.14 × 12,289.30
  4. Step 4: Simplify right side
    22,360.98x = 379,200,361.30
  5. Step 5: Solve for x
    x = 379,200,361.30/22,360.98
  6. Step 6: Final answer
    x = 16,958.13

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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.