Home / 21,977.20-32,944.20-10,885.60

Finding the Fourth Proportional to 21,977.20, 32,944.20 and 10,885.60

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Solution

The fourth proportional to 21,977.20, 32,944.20 and 10,885.60 is: 16,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.20 : 32,944.20 = 10,885.60 : x
  2. Step 2: Convert to fraction form
    21,977.20/32,944.20 = 10,885.60/x
  3. Step 3: Cross multiply
    21,977.20x = 32,944.20 × 10,885.60
  4. Step 4: Simplify right side
    21,977.20x = 358,617,383.52
  5. Step 5: Solve for x
    x = 358,617,383.52/21,977.20
  6. Step 6: Final answer
    x = 16,317.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.