Home / 39,809.84-54,935.42-21,901.96

Finding the Fourth Proportional to 39,809.84, 54,935.42 and 21,901.96

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Solution

The fourth proportional to 39,809.84, 54,935.42 and 21,901.96 is: 30,223.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,809.84 : 54,935.42 = 21,901.96 : x
  2. Step 2: Convert to fraction form
    39,809.84/54,935.42 = 21,901.96/x
  3. Step 3: Cross multiply
    39,809.84x = 54,935.42 × 21,901.96
  4. Step 4: Simplify right side
    39,809.84x = 1,203,193,371.42
  5. Step 5: Solve for x
    x = 1,203,193,371.42/39,809.84
  6. Step 6: Final answer
    x = 30,223.52

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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.