Home / 21,780.72-32,671.56-6,198.84

Finding the Fourth Proportional to 21,780.72, 32,671.56 and 6,198.84

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Solution

The fourth proportional to 21,780.72, 32,671.56 and 6,198.84 is: 9,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780.72 : 32,671.56 = 6,198.84 : x
  2. Step 2: Convert to fraction form
    21,780.72/32,671.56 = 6,198.84/x
  3. Step 3: Cross multiply
    21,780.72x = 32,671.56 × 6,198.84
  4. Step 4: Simplify right side
    21,780.72x = 202,525,772.99
  5. Step 5: Solve for x
    x = 202,525,772.99/21,780.72
  6. Step 6: Final answer
    x = 9,298.40

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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.