Home / 20,734.61-31,096.44-7,587.09

Finding the Fourth Proportional to 20,734.61, 31,096.44 and 7,587.09

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Solution

The fourth proportional to 20,734.61, 31,096.44 and 7,587.09 is: 11,378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.61 : 31,096.44 = 7,587.09 : x
  2. Step 2: Convert to fraction form
    20,734.61/31,096.44 = 7,587.09/x
  3. Step 3: Cross multiply
    20,734.61x = 31,096.44 × 7,587.09
  4. Step 4: Simplify right side
    20,734.61x = 235,931,488.96
  5. Step 5: Solve for x
    x = 235,931,488.96/20,734.61
  6. Step 6: Final answer
    x = 11,378.63

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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.