Home / 28,717.91-43,076.71-9,997.80

Finding the Fourth Proportional to 28,717.91, 43,076.71 and 9,997.80

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Solution

The fourth proportional to 28,717.91, 43,076.71 and 9,997.80 is: 14,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.91 : 43,076.71 = 9,997.80 : x
  2. Step 2: Convert to fraction form
    28,717.91/43,076.71 = 9,997.80/x
  3. Step 3: Cross multiply
    28,717.91x = 43,076.71 × 9,997.80
  4. Step 4: Simplify right side
    28,717.91x = 430,672,182.20
  5. Step 5: Solve for x
    x = 430,672,182.20/28,717.91
  6. Step 6: Final answer
    x = 14,996.64

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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.