Home / 28,067.47-38,732.14-16,731.11

Finding the Fourth Proportional to 28,067.47, 38,732.14 and 16,731.11

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Solution

The fourth proportional to 28,067.47, 38,732.14 and 16,731.11 is: 23,088.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.47 : 38,732.14 = 16,731.11 : x
  2. Step 2: Convert to fraction form
    28,067.47/38,732.14 = 16,731.11/x
  3. Step 3: Cross multiply
    28,067.47x = 38,732.14 × 16,731.11
  4. Step 4: Simplify right side
    28,067.47x = 648,031,749.88
  5. Step 5: Solve for x
    x = 648,031,749.88/28,067.47
  6. Step 6: Final answer
    x = 23,088.36

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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.