Home / 20,316.57-28,025.58-11,817.74

Finding the Fourth Proportional to 20,316.57, 28,025.58 and 11,817.74

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Solution

The fourth proportional to 20,316.57, 28,025.58 and 11,817.74 is: 16,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.57 : 28,025.58 = 11,817.74 : x
  2. Step 2: Convert to fraction form
    20,316.57/28,025.58 = 11,817.74/x
  3. Step 3: Cross multiply
    20,316.57x = 28,025.58 × 11,817.74
  4. Step 4: Simplify right side
    20,316.57x = 331,198,877.66
  5. Step 5: Solve for x
    x = 331,198,877.66/20,316.57
  6. Step 6: Final answer
    x = 16,301.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.