Home / 27,861.76-38,447.76-15,923.52

Finding the Fourth Proportional to 27,861.76, 38,447.76 and 15,923.52

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Solution

The fourth proportional to 27,861.76, 38,447.76 and 15,923.52 is: 21,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.76 : 38,447.76 = 15,923.52 : x
  2. Step 2: Convert to fraction form
    27,861.76/38,447.76 = 15,923.52/x
  3. Step 3: Cross multiply
    27,861.76x = 38,447.76 × 15,923.52
  4. Step 4: Simplify right side
    27,861.76x = 612,223,675.32
  5. Step 5: Solve for x
    x = 612,223,675.32/27,861.76
  6. Step 6: Final answer
    x = 21,973.62

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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.