Home / 31,518.56-43,495.38-17,371.40

Finding the Fourth Proportional to 31,518.56, 43,495.38 and 17,371.40

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Solution

The fourth proportional to 31,518.56, 43,495.38 and 17,371.40 is: 23,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.56 : 43,495.38 = 17,371.40 : x
  2. Step 2: Convert to fraction form
    31,518.56/43,495.38 = 17,371.40/x
  3. Step 3: Cross multiply
    31,518.56x = 43,495.38 × 17,371.40
  4. Step 4: Simplify right side
    31,518.56x = 755,575,644.13
  5. Step 5: Solve for x
    x = 755,575,644.13/31,518.56
  6. Step 6: Final answer
    x = 23,972.40

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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.