Home / 21,288.36-31,935.96-7,249.26

Finding the Fourth Proportional to 21,288.36, 31,935.96 and 7,249.26

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Solution

The fourth proportional to 21,288.36, 31,935.96 and 7,249.26 is: 10,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288.36 : 31,935.96 = 7,249.26 : x
  2. Step 2: Convert to fraction form
    21,288.36/31,935.96 = 7,249.26/x
  3. Step 3: Cross multiply
    21,288.36x = 31,935.96 × 7,249.26
  4. Step 4: Simplify right side
    21,288.36x = 231,512,077.39
  5. Step 5: Solve for x
    x = 231,512,077.39/21,288.36
  6. Step 6: Final answer
    x = 10,875.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.