Home / 20,187.02-27,858.05-12,527.44

Finding the Fourth Proportional to 20,187.02, 27,858.05 and 12,527.44

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Solution

The fourth proportional to 20,187.02, 27,858.05 and 12,527.44 is: 17,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.02 : 27,858.05 = 12,527.44 : x
  2. Step 2: Convert to fraction form
    20,187.02/27,858.05 = 12,527.44/x
  3. Step 3: Cross multiply
    20,187.02x = 27,858.05 × 12,527.44
  4. Step 4: Simplify right side
    20,187.02x = 348,990,049.89
  5. Step 5: Solve for x
    x = 348,990,049.89/20,187.02
  6. Step 6: Final answer
    x = 17,287.85

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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.