Home / 38,766.09-53,497.26-21,999.09

Finding the Fourth Proportional to 38,766.09, 53,497.26 and 21,999.09

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Solution

The fourth proportional to 38,766.09, 53,497.26 and 21,999.09 is: 30,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,766.09 : 53,497.26 = 21,999.09 : x
  2. Step 2: Convert to fraction form
    38,766.09/53,497.26 = 21,999.09/x
  3. Step 3: Cross multiply
    38,766.09x = 53,497.26 × 21,999.09
  4. Step 4: Simplify right side
    38,766.09x = 1,176,891,238.11
  5. Step 5: Solve for x
    x = 1,176,891,238.11/38,766.09
  6. Step 6: Final answer
    x = 30,358.78

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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.