Home / 31,319.56-43,220.68-17,172.37

Finding the Fourth Proportional to 31,319.56, 43,220.68 and 17,172.37

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Solution

The fourth proportional to 31,319.56, 43,220.68 and 17,172.37 is: 23,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.56 : 43,220.68 = 17,172.37 : x
  2. Step 2: Convert to fraction form
    31,319.56/43,220.68 = 17,172.37/x
  3. Step 3: Cross multiply
    31,319.56x = 43,220.68 × 17,172.37
  4. Step 4: Simplify right side
    31,319.56x = 742,201,508.61
  5. Step 5: Solve for x
    x = 742,201,508.61/31,319.56
  6. Step 6: Final answer
    x = 23,697.70

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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.