Home / 27,156.32-40,743.32-13,117.96

Finding the Fourth Proportional to 27,156.32, 40,743.32 and 13,117.96

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Solution

The fourth proportional to 27,156.32, 40,743.32 and 13,117.96 is: 19,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,156.32 : 40,743.32 = 13,117.96 : x
  2. Step 2: Convert to fraction form
    27,156.32/40,743.32 = 13,117.96/x
  3. Step 3: Cross multiply
    27,156.32x = 40,743.32 × 13,117.96
  4. Step 4: Simplify right side
    27,156.32x = 534,469,045.28
  5. Step 5: Solve for x
    x = 534,469,045.28/27,156.32
  6. Step 6: Final answer
    x = 19,681.20

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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.