Home / 31,721.49-43,773.21-17,378.10

Finding the Fourth Proportional to 31,721.49, 43,773.21 and 17,378.10

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Solution

The fourth proportional to 31,721.49, 43,773.21 and 17,378.10 is: 23,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.49 : 43,773.21 = 17,378.10 : x
  2. Step 2: Convert to fraction form
    31,721.49/43,773.21 = 17,378.10/x
  3. Step 3: Cross multiply
    31,721.49x = 43,773.21 × 17,378.10
  4. Step 4: Simplify right side
    31,721.49x = 760,695,220.70
  5. Step 5: Solve for x
    x = 760,695,220.70/31,721.49
  6. Step 6: Final answer
    x = 23,980.44

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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.