Home / 27,129.15-40,642.29-16,002.72

Finding the Fourth Proportional to 27,129.15, 40,642.29 and 16,002.72

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Solution

The fourth proportional to 27,129.15, 40,642.29 and 16,002.72 is: 23,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.15 : 40,642.29 = 16,002.72 : x
  2. Step 2: Convert to fraction form
    27,129.15/40,642.29 = 16,002.72/x
  3. Step 3: Cross multiply
    27,129.15x = 40,642.29 × 16,002.72
  4. Step 4: Simplify right side
    27,129.15x = 650,387,187.03
  5. Step 5: Solve for x
    x = 650,387,187.03/27,129.15
  6. Step 6: Final answer
    x = 23,973.74

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Why These Related Problems?

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