Home / 38,389.20-52,975.68-21,618.96

Finding the Fourth Proportional to 38,389.20, 52,975.68 and 21,618.96

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Solution

The fourth proportional to 38,389.20, 52,975.68 and 21,618.96 is: 29,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.20 : 52,975.68 = 21,618.96 : x
  2. Step 2: Convert to fraction form
    38,389.20/52,975.68 = 21,618.96/x
  3. Step 3: Cross multiply
    38,389.20x = 52,975.68 × 21,618.96
  4. Step 4: Simplify right side
    38,389.20x = 1,145,279,106.89
  5. Step 5: Solve for x
    x = 1,145,279,106.89/38,389.20
  6. Step 6: Final answer
    x = 29,833.37

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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.