Home / 30,569.52-42,194.94-19,960.80

Finding the Fourth Proportional to 30,569.52, 42,194.94 and 19,960.80

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Solution

The fourth proportional to 30,569.52, 42,194.94 and 19,960.80 is: 27,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,569.52 : 42,194.94 = 19,960.80 : x
  2. Step 2: Convert to fraction form
    30,569.52/42,194.94 = 19,960.80/x
  3. Step 3: Cross multiply
    30,569.52x = 42,194.94 × 19,960.80
  4. Step 4: Simplify right side
    30,569.52x = 842,244,758.35
  5. Step 5: Solve for x
    x = 842,244,758.35/30,569.52
  6. Step 6: Final answer
    x = 27,551.78

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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.