Home / 20,977.83-28,934.28-12,022.11

Finding the Fourth Proportional to 20,977.83, 28,934.28 and 12,022.11

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Solution

The fourth proportional to 20,977.83, 28,934.28 and 12,022.11 is: 16,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.83 : 28,934.28 = 12,022.11 : x
  2. Step 2: Convert to fraction form
    20,977.83/28,934.28 = 12,022.11/x
  3. Step 3: Cross multiply
    20,977.83x = 28,934.28 × 12,022.11
  4. Step 4: Simplify right side
    20,977.83x = 347,851,096.93
  5. Step 5: Solve for x
    x = 347,851,096.93/20,977.83
  6. Step 6: Final answer
    x = 16,581.84

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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.