Home / 47,175.78-70,752.32-13,886.80

Finding the Fourth Proportional to 47,175.78, 70,752.32 and 13,886.80

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Solution

The fourth proportional to 47,175.78, 70,752.32 and 13,886.80 is: 20,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,175.78 : 70,752.32 = 13,886.80 : x
  2. Step 2: Convert to fraction form
    47,175.78/70,752.32 = 13,886.80/x
  3. Step 3: Cross multiply
    47,175.78x = 70,752.32 × 13,886.80
  4. Step 4: Simplify right side
    47,175.78x = 982,523,317.38
  5. Step 5: Solve for x
    x = 982,523,317.38/47,175.78
  6. Step 6: Final answer
    x = 20,826.86

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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.