Home / 22,388.18-30,896.09-12,316.56

Finding the Fourth Proportional to 22,388.18, 30,896.09 and 12,316.56

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Solution

The fourth proportional to 22,388.18, 30,896.09 and 12,316.56 is: 16,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,388.18 : 30,896.09 = 12,316.56 : x
  2. Step 2: Convert to fraction form
    22,388.18/30,896.09 = 12,316.56/x
  3. Step 3: Cross multiply
    22,388.18x = 30,896.09 × 12,316.56
  4. Step 4: Simplify right side
    22,388.18x = 380,533,484.67
  5. Step 5: Solve for x
    x = 380,533,484.67/22,388.18
  6. Step 6: Final answer
    x = 16,997.07

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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.