Home / 38,585.52-53,249.04-21,818.88

Finding the Fourth Proportional to 38,585.52, 53,249.04 and 21,818.88

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Solution

The fourth proportional to 38,585.52, 53,249.04 and 21,818.88 is: 30,110.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,585.52 : 53,249.04 = 21,818.88 : x
  2. Step 2: Convert to fraction form
    38,585.52/53,249.04 = 21,818.88/x
  3. Step 3: Cross multiply
    38,585.52x = 53,249.04 × 21,818.88
  4. Step 4: Simplify right side
    38,585.52x = 1,161,834,413.88
  5. Step 5: Solve for x
    x = 1,161,834,413.88/38,585.52
  6. Step 6: Final answer
    x = 30,110.63

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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.