Home / 31,440.40-43,388.05-17,100.37

Finding the Fourth Proportional to 31,440.40, 43,388.05 and 17,100.37

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Solution

The fourth proportional to 31,440.40, 43,388.05 and 17,100.37 is: 23,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.40 : 43,388.05 = 17,100.37 : x
  2. Step 2: Convert to fraction form
    31,440.40/43,388.05 = 17,100.37/x
  3. Step 3: Cross multiply
    31,440.40x = 43,388.05 × 17,100.37
  4. Step 4: Simplify right side
    31,440.40x = 741,951,708.58
  5. Step 5: Solve for x
    x = 741,951,708.58/31,440.40
  6. Step 6: Final answer
    x = 23,598.67

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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.