Home / 20,090.87-27,706.16-12,023.15

Finding the Fourth Proportional to 20,090.87, 27,706.16 and 12,023.15

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Solution

The fourth proportional to 20,090.87, 27,706.16 and 12,023.15 is: 16,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.87 : 27,706.16 = 12,023.15 : x
  2. Step 2: Convert to fraction form
    20,090.87/27,706.16 = 12,023.15/x
  3. Step 3: Cross multiply
    20,090.87x = 27,706.16 × 12,023.15
  4. Step 4: Simplify right side
    20,090.87x = 333,115,317.60
  5. Step 5: Solve for x
    x = 333,115,317.60/20,090.87
  6. Step 6: Final answer
    x = 16,580.44

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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.