Home / 20,749.40-31,124.10-7,596.44

Finding the Fourth Proportional to 20,749.40, 31,124.10 and 7,596.44

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Solution

The fourth proportional to 20,749.40, 31,124.10 and 7,596.44 is: 11,394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.40 : 31,124.10 = 7,596.44 : x
  2. Step 2: Convert to fraction form
    20,749.40/31,124.10 = 7,596.44/x
  3. Step 3: Cross multiply
    20,749.40x = 31,124.10 × 7,596.44
  4. Step 4: Simplify right side
    20,749.40x = 236,432,358.20
  5. Step 5: Solve for x
    x = 236,432,358.20/20,749.40
  6. Step 6: Final answer
    x = 11,394.66

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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.