Home / 28,979.34-43,469.91-10,256.79

Finding the Fourth Proportional to 28,979.34, 43,469.91 and 10,256.79

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Solution

The fourth proportional to 28,979.34, 43,469.91 and 10,256.79 is: 15,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.34 : 43,469.91 = 10,256.79 : x
  2. Step 2: Convert to fraction form
    28,979.34/43,469.91 = 10,256.79/x
  3. Step 3: Cross multiply
    28,979.34x = 43,469.91 × 10,256.79
  4. Step 4: Simplify right side
    28,979.34x = 445,861,738.19
  5. Step 5: Solve for x
    x = 445,861,738.19/28,979.34
  6. Step 6: Final answer
    x = 15,385.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.