Home / 21,179.34-31,769.01-8,697.24

Finding the Fourth Proportional to 21,179.34, 31,769.01 and 8,697.24

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Solution

The fourth proportional to 21,179.34, 31,769.01 and 8,697.24 is: 13,045.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.34 : 31,769.01 = 8,697.24 : x
  2. Step 2: Convert to fraction form
    21,179.34/31,769.01 = 8,697.24/x
  3. Step 3: Cross multiply
    21,179.34x = 31,769.01 × 8,697.24
  4. Step 4: Simplify right side
    21,179.34x = 276,302,704.53
  5. Step 5: Solve for x
    x = 276,302,704.53/21,179.34
  6. Step 6: Final answer
    x = 13,045.86

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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.