Home / 47,142.12-70,696.17-13,853.28

Finding the Fourth Proportional to 47,142.12, 70,696.17 and 13,853.28

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Solution

The fourth proportional to 47,142.12, 70,696.17 and 13,853.28 is: 20,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,142.12 : 70,696.17 = 13,853.28 : x
  2. Step 2: Convert to fraction form
    47,142.12/70,696.17 = 13,853.28/x
  3. Step 3: Cross multiply
    47,142.12x = 70,696.17 × 13,853.28
  4. Step 4: Simplify right side
    47,142.12x = 979,373,837.94
  5. Step 5: Solve for x
    x = 979,373,837.94/47,142.12
  6. Step 6: Final answer
    x = 20,774.92

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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.