Home / 21,002.26-31,516.58-8,522.34

Finding the Fourth Proportional to 21,002.26, 31,516.58 and 8,522.34

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Solution

The fourth proportional to 21,002.26, 31,516.58 and 8,522.34 is: 12,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002.26 : 31,516.58 = 8,522.34 : x
  2. Step 2: Convert to fraction form
    21,002.26/31,516.58 = 8,522.34/x
  3. Step 3: Cross multiply
    21,002.26x = 31,516.58 × 8,522.34
  4. Step 4: Simplify right side
    21,002.26x = 268,594,865.58
  5. Step 5: Solve for x
    x = 268,594,865.58/21,002.26
  6. Step 6: Final answer
    x = 12,788.86

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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.