Home / 28,244.01-38,976.78-15,668.76

Finding the Fourth Proportional to 28,244.01, 38,976.78 and 15,668.76

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Solution

The fourth proportional to 28,244.01, 38,976.78 and 15,668.76 is: 21,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.01 : 38,976.78 = 15,668.76 : x
  2. Step 2: Convert to fraction form
    28,244.01/38,976.78 = 15,668.76/x
  3. Step 3: Cross multiply
    28,244.01x = 38,976.78 × 15,668.76
  4. Step 4: Simplify right side
    28,244.01x = 610,717,811.39
  5. Step 5: Solve for x
    x = 610,717,811.39/28,244.01
  6. Step 6: Final answer
    x = 21,622.91

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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.