Home / 20,029.95-27,650.16-11,966.40

Finding the Fourth Proportional to 20,029.95, 27,650.16 and 11,966.40

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Solution

The fourth proportional to 20,029.95, 27,650.16 and 11,966.40 is: 16,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.95 : 27,650.16 = 11,966.40 : x
  2. Step 2: Convert to fraction form
    20,029.95/27,650.16 = 11,966.40/x
  3. Step 3: Cross multiply
    20,029.95x = 27,650.16 × 11,966.40
  4. Step 4: Simplify right side
    20,029.95x = 330,872,874.62
  5. Step 5: Solve for x
    x = 330,872,874.62/20,029.95
  6. Step 6: Final answer
    x = 16,518.91

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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.