Home / 39,996.32-55,216-25,857.20

Finding the Fourth Proportional to 39,996.32, 55,216 and 25,857.20

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Solution

The fourth proportional to 39,996.32, 55,216 and 25,857.20 is: 35,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,996.32 : 55,216 = 25,857.20 : x
  2. Step 2: Convert to fraction form
    39,996.32/55,216 = 25,857.20/x
  3. Step 3: Cross multiply
    39,996.32x = 55,216 × 25,857.20
  4. Step 4: Simplify right side
    39,996.32x = 1,427,731,155.20
  5. Step 5: Solve for x
    x = 1,427,731,155.20/39,996.32
  6. Step 6: Final answer
    x = 35,696.56

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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.