Home / 26,989.92-37,252.78-18,390.32

Finding the Fourth Proportional to 26,989.92, 37,252.78 and 18,390.32

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Solution

The fourth proportional to 26,989.92, 37,252.78 and 18,390.32 is: 25,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,989.92 : 37,252.78 = 18,390.32 : x
  2. Step 2: Convert to fraction form
    26,989.92/37,252.78 = 18,390.32/x
  3. Step 3: Cross multiply
    26,989.92x = 37,252.78 × 18,390.32
  4. Step 4: Simplify right side
    26,989.92x = 685,090,545.09
  5. Step 5: Solve for x
    x = 685,090,545.09/26,989.92
  6. Step 6: Final answer
    x = 25,383.20

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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.