Home / 21,293.67-31,944.35-8,806.91

Finding the Fourth Proportional to 21,293.67, 31,944.35 and 8,806.91

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Solution

The fourth proportional to 21,293.67, 31,944.35 and 8,806.91 is: 13,211.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.67 : 31,944.35 = 8,806.91 : x
  2. Step 2: Convert to fraction form
    21,293.67/31,944.35 = 8,806.91/x
  3. Step 3: Cross multiply
    21,293.67x = 31,944.35 × 8,806.91
  4. Step 4: Simplify right side
    21,293.67x = 281,331,015.46
  5. Step 5: Solve for x
    x = 281,331,015.46/21,293.67
  6. Step 6: Final answer
    x = 13,211.96

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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.