Home / 27,636.96-38,138.80-15,061.44

Finding the Fourth Proportional to 27,636.96, 38,138.80 and 15,061.44

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Solution

The fourth proportional to 27,636.96, 38,138.80 and 15,061.44 is: 20,784.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.96 : 38,138.80 = 15,061.44 : x
  2. Step 2: Convert to fraction form
    27,636.96/38,138.80 = 15,061.44/x
  3. Step 3: Cross multiply
    27,636.96x = 38,138.80 × 15,061.44
  4. Step 4: Simplify right side
    27,636.96x = 574,425,247.87
  5. Step 5: Solve for x
    x = 574,425,247.87/27,636.96
  6. Step 6: Final answer
    x = 20,784.68

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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.