Home / 22,500.93-31,049.40-12,940.32

Finding the Fourth Proportional to 22,500.93, 31,049.40 and 12,940.32

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Solution

The fourth proportional to 22,500.93, 31,049.40 and 12,940.32 is: 17,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,500.93 : 31,049.40 = 12,940.32 : x
  2. Step 2: Convert to fraction form
    22,500.93/31,049.40 = 12,940.32/x
  3. Step 3: Cross multiply
    22,500.93x = 31,049.40 × 12,940.32
  4. Step 4: Simplify right side
    22,500.93x = 401,789,171.81
  5. Step 5: Solve for x
    x = 401,789,171.81/22,500.93
  6. Step 6: Final answer
    x = 17,856.56

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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.