Home / 20,747.88-31,123.44-7,599.96

Finding the Fourth Proportional to 20,747.88, 31,123.44 and 7,599.96

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Solution

The fourth proportional to 20,747.88, 31,123.44 and 7,599.96 is: 11,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.88 : 31,123.44 = 7,599.96 : x
  2. Step 2: Convert to fraction form
    20,747.88/31,123.44 = 7,599.96/x
  3. Step 3: Cross multiply
    20,747.88x = 31,123.44 × 7,599.96
  4. Step 4: Simplify right side
    20,747.88x = 236,536,899.06
  5. Step 5: Solve for x
    x = 236,536,899.06/20,747.88
  6. Step 6: Final answer
    x = 11,400.53

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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.