Home / 38,660.70-53,351.55-21,892.62

Finding the Fourth Proportional to 38,660.70, 53,351.55 and 21,892.62

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Solution

The fourth proportional to 38,660.70, 53,351.55 and 21,892.62 is: 30,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.70 : 53,351.55 = 21,892.62 : x
  2. Step 2: Convert to fraction form
    38,660.70/53,351.55 = 21,892.62/x
  3. Step 3: Cross multiply
    38,660.70x = 53,351.55 × 21,892.62
  4. Step 4: Simplify right side
    38,660.70x = 1,168,005,210.56
  5. Step 5: Solve for x
    x = 1,168,005,210.56/38,660.70
  6. Step 6: Final answer
    x = 30,211.69

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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.