Home / 21,225.30-31,794.60-10,098.36

Finding the Fourth Proportional to 21,225.30, 31,794.60 and 10,098.36

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Solution

The fourth proportional to 21,225.30, 31,794.60 and 10,098.36 is: 15,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.30 : 31,794.60 = 10,098.36 : x
  2. Step 2: Convert to fraction form
    21,225.30/31,794.60 = 10,098.36/x
  3. Step 3: Cross multiply
    21,225.30x = 31,794.60 × 10,098.36
  4. Step 4: Simplify right side
    21,225.30x = 321,073,316.86
  5. Step 5: Solve for x
    x = 321,073,316.86/21,225.30
  6. Step 6: Final answer
    x = 15,126.92

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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.