Home / 20,932.70-28,891.74-16,386.34

Finding the Fourth Proportional to 20,932.70, 28,891.74 and 16,386.34

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Solution

The fourth proportional to 20,932.70, 28,891.74 and 16,386.34 is: 22,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.70 : 28,891.74 = 16,386.34 : x
  2. Step 2: Convert to fraction form
    20,932.70/28,891.74 = 16,386.34/x
  3. Step 3: Cross multiply
    20,932.70x = 28,891.74 × 16,386.34
  4. Step 4: Simplify right side
    20,932.70x = 473,429,874.83
  5. Step 5: Solve for x
    x = 473,429,874.83/20,932.70
  6. Step 6: Final answer
    x = 22,616.76

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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.