Home / 21,946.40-32,930.08-10,257.92

Finding the Fourth Proportional to 21,946.40, 32,930.08 and 10,257.92

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Solution

The fourth proportional to 21,946.40, 32,930.08 and 10,257.92 is: 15,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.40 : 32,930.08 = 10,257.92 : x
  2. Step 2: Convert to fraction form
    21,946.40/32,930.08 = 10,257.92/x
  3. Step 3: Cross multiply
    21,946.40x = 32,930.08 × 10,257.92
  4. Step 4: Simplify right side
    21,946.40x = 337,794,126.23
  5. Step 5: Solve for x
    x = 337,794,126.23/21,946.40
  6. Step 6: Final answer
    x = 15,391.78

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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.