Home / 22,586.92-31,172.88-13,639.48

Finding the Fourth Proportional to 22,586.92, 31,172.88 and 13,639.48

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Solution

The fourth proportional to 22,586.92, 31,172.88 and 13,639.48 is: 18,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,586.92 : 31,172.88 = 13,639.48 : x
  2. Step 2: Convert to fraction form
    22,586.92/31,172.88 = 13,639.48/x
  3. Step 3: Cross multiply
    22,586.92x = 31,172.88 × 13,639.48
  4. Step 4: Simplify right side
    22,586.92x = 425,181,873.30
  5. Step 5: Solve for x
    x = 425,181,873.30/22,586.92
  6. Step 6: Final answer
    x = 18,824.25

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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.