Home / 20,367.33-28,106.85-11,874.48

Finding the Fourth Proportional to 20,367.33, 28,106.85 and 11,874.48

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Solution

The fourth proportional to 20,367.33, 28,106.85 and 11,874.48 is: 16,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.33 : 28,106.85 = 11,874.48 : x
  2. Step 2: Convert to fraction form
    20,367.33/28,106.85 = 11,874.48/x
  3. Step 3: Cross multiply
    20,367.33x = 28,106.85 × 11,874.48
  4. Step 4: Simplify right side
    20,367.33x = 333,754,130.96
  5. Step 5: Solve for x
    x = 333,754,130.96/20,367.33
  6. Step 6: Final answer
    x = 16,386.74

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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.