Home / 21,771.14-32,666.85-6,780.56

Finding the Fourth Proportional to 21,771.14, 32,666.85 and 6,780.56

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Solution

The fourth proportional to 21,771.14, 32,666.85 and 6,780.56 is: 10,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,771.14 : 32,666.85 = 6,780.56 : x
  2. Step 2: Convert to fraction form
    21,771.14/32,666.85 = 6,780.56/x
  3. Step 3: Cross multiply
    21,771.14x = 32,666.85 × 6,780.56
  4. Step 4: Simplify right side
    21,771.14x = 221,499,373.10
  5. Step 5: Solve for x
    x = 221,499,373.10/21,771.14
  6. Step 6: Final answer
    x = 10,173.99

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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.