Home / 20,649.06-30,897.05-12,333.60

Finding the Fourth Proportional to 20,649.06, 30,897.05 and 12,333.60

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Solution

The fourth proportional to 20,649.06, 30,897.05 and 12,333.60 is: 18,454.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.06 : 30,897.05 = 12,333.60 : x
  2. Step 2: Convert to fraction form
    20,649.06/30,897.05 = 12,333.60/x
  3. Step 3: Cross multiply
    20,649.06x = 30,897.05 × 12,333.60
  4. Step 4: Simplify right side
    20,649.06x = 381,071,794.21
  5. Step 5: Solve for x
    x = 381,071,794.21/20,649.06
  6. Step 6: Final answer
    x = 18,454.68

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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.