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Finding the Fourth Proportional to 38,837.67, 53,594.67 and 21,842.64

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Solution

The fourth proportional to 38,837.67, 53,594.67 and 21,842.64 is: 30,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,837.67 : 53,594.67 = 21,842.64 : x
  2. Step 2: Convert to fraction form
    38,837.67/53,594.67 = 21,842.64/x
  3. Step 3: Cross multiply
    38,837.67x = 53,594.67 × 21,842.64
  4. Step 4: Simplify right side
    38,837.67x = 1,170,649,082.73
  5. Step 5: Solve for x
    x = 1,170,649,082.73/38,837.67
  6. Step 6: Final answer
    x = 30,142.10

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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.