Home / 27,636.58-38,138.52-15,061.30

Finding the Fourth Proportional to 27,636.58, 38,138.52 and 15,061.30

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Solution

The fourth proportional to 27,636.58, 38,138.52 and 15,061.30 is: 20,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.58 : 38,138.52 = 15,061.30 : x
  2. Step 2: Convert to fraction form
    27,636.58/38,138.52 = 15,061.30/x
  3. Step 3: Cross multiply
    27,636.58x = 38,138.52 × 15,061.30
  4. Step 4: Simplify right side
    27,636.58x = 574,415,691.28
  5. Step 5: Solve for x
    x = 574,415,691.28/27,636.58
  6. Step 6: Final answer
    x = 20,784.62

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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.