Home / 39,803.36-54,930.15-21,897.95

Finding the Fourth Proportional to 39,803.36, 54,930.15 and 21,897.95

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Solution

The fourth proportional to 39,803.36, 54,930.15 and 21,897.95 is: 30,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.36 : 54,930.15 = 21,897.95 : x
  2. Step 2: Convert to fraction form
    39,803.36/54,930.15 = 21,897.95/x
  3. Step 3: Cross multiply
    39,803.36x = 54,930.15 × 21,897.95
  4. Step 4: Simplify right side
    39,803.36x = 1,202,857,403.54
  5. Step 5: Solve for x
    x = 1,202,857,403.54/39,803.36
  6. Step 6: Final answer
    x = 30,220.00

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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.