Home / 39,288.18-54,216.03-21,383.22

Finding the Fourth Proportional to 39,288.18, 54,216.03 and 21,383.22

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Solution

The fourth proportional to 39,288.18, 54,216.03 and 21,383.22 is: 29,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288.18 : 54,216.03 = 21,383.22 : x
  2. Step 2: Convert to fraction form
    39,288.18/54,216.03 = 21,383.22/x
  3. Step 3: Cross multiply
    39,288.18x = 54,216.03 × 21,383.22
  4. Step 4: Simplify right side
    39,288.18x = 1,159,313,297.02
  5. Step 5: Solve for x
    x = 1,159,313,297.02/39,288.18
  6. Step 6: Final answer
    x = 29,507.94

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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.