Home / 16,720.43-25,080.57-13,587.48

Finding the Fourth Proportional to 16,720.43, 25,080.57 and 13,587.48

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Solution

The fourth proportional to 16,720.43, 25,080.57 and 13,587.48 is: 20,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.43 : 25,080.57 = 13,587.48 : x
  2. Step 2: Convert to fraction form
    16,720.43/25,080.57 = 13,587.48/x
  3. Step 3: Cross multiply
    16,720.43x = 25,080.57 × 13,587.48
  4. Step 4: Simplify right side
    16,720.43x = 340,781,743.26
  5. Step 5: Solve for x
    x = 340,781,743.26/16,720.43
  6. Step 6: Final answer
    x = 20,381.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.