Home / 39,822.32-54,953.44-21,917.20

Finding the Fourth Proportional to 39,822.32, 54,953.44 and 21,917.20

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Solution

The fourth proportional to 39,822.32, 54,953.44 and 21,917.20 is: 30,244.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,822.32 : 54,953.44 = 21,917.20 : x
  2. Step 2: Convert to fraction form
    39,822.32/54,953.44 = 21,917.20/x
  3. Step 3: Cross multiply
    39,822.32x = 54,953.44 × 21,917.20
  4. Step 4: Simplify right side
    39,822.32x = 1,204,425,535.17
  5. Step 5: Solve for x
    x = 1,204,425,535.17/39,822.32
  6. Step 6: Final answer
    x = 30,244.99

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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.