Home / 27,860.76-38,447.52-15,113.64

Finding the Fourth Proportional to 27,860.76, 38,447.52 and 15,113.64

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Solution

The fourth proportional to 27,860.76, 38,447.52 and 15,113.64 is: 20,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.76 : 38,447.52 = 15,113.64 : x
  2. Step 2: Convert to fraction form
    27,860.76/38,447.52 = 15,113.64/x
  3. Step 3: Cross multiply
    27,860.76x = 38,447.52 × 15,113.64
  4. Step 4: Simplify right side
    27,860.76x = 581,081,976.17
  5. Step 5: Solve for x
    x = 581,081,976.17/27,860.76
  6. Step 6: Final answer
    x = 20,856.64

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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.