Home / 28,067.70-38,732.45-16,731.35

Finding the Fourth Proportional to 28,067.70, 38,732.45 and 16,731.35

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Solution

The fourth proportional to 28,067.70, 38,732.45 and 16,731.35 is: 23,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.70 : 38,732.45 = 16,731.35 : x
  2. Step 2: Convert to fraction form
    28,067.70/38,732.45 = 16,731.35/x
  3. Step 3: Cross multiply
    28,067.70x = 38,732.45 × 16,731.35
  4. Step 4: Simplify right side
    28,067.70x = 648,046,295.34
  5. Step 5: Solve for x
    x = 648,046,295.34/28,067.70
  6. Step 6: Final answer
    x = 23,088.69

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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.