Home / 31,518.78-43,495.79-17,371.62

Finding the Fourth Proportional to 31,518.78, 43,495.79 and 17,371.62

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Solution

The fourth proportional to 31,518.78, 43,495.79 and 17,371.62 is: 23,972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.78 : 43,495.79 = 17,371.62 : x
  2. Step 2: Convert to fraction form
    31,518.78/43,495.79 = 17,371.62/x
  3. Step 3: Cross multiply
    31,518.78x = 43,495.79 × 17,371.62
  4. Step 4: Simplify right side
    31,518.78x = 755,592,248.62
  5. Step 5: Solve for x
    x = 755,592,248.62/31,518.78
  6. Step 6: Final answer
    x = 23,972.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.