Home / 38,887.17-53,669.49-21,894.72

Finding the Fourth Proportional to 38,887.17, 53,669.49 and 21,894.72

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Solution

The fourth proportional to 38,887.17, 53,669.49 and 21,894.72 is: 30,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,887.17 : 53,669.49 = 21,894.72 : x
  2. Step 2: Convert to fraction form
    38,887.17/53,669.49 = 21,894.72/x
  3. Step 3: Cross multiply
    38,887.17x = 53,669.49 × 21,894.72
  4. Step 4: Simplify right side
    38,887.17x = 1,175,078,456.09
  5. Step 5: Solve for x
    x = 1,175,078,456.09/38,887.17
  6. Step 6: Final answer
    x = 30,217.64

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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.