Home / 20,077.13-27,707.16-12,117.80

Finding the Fourth Proportional to 20,077.13, 27,707.16 and 12,117.80

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Solution

The fourth proportional to 20,077.13, 27,707.16 and 12,117.80 is: 16,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.13 : 27,707.16 = 12,117.80 : x
  2. Step 2: Convert to fraction form
    20,077.13/27,707.16 = 12,117.80/x
  3. Step 3: Cross multiply
    20,077.13x = 27,707.16 × 12,117.80
  4. Step 4: Simplify right side
    20,077.13x = 335,749,684.91
  5. Step 5: Solve for x
    x = 335,749,684.91/20,077.13
  6. Step 6: Final answer
    x = 16,723.00

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