Home / 39,190.40-58,729.56-31,316.86

Finding the Fourth Proportional to 39,190.40, 58,729.56 and 31,316.86

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Solution

The fourth proportional to 39,190.40, 58,729.56 and 31,316.86 is: 46,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.40 : 58,729.56 = 31,316.86 : x
  2. Step 2: Convert to fraction form
    39,190.40/58,729.56 = 31,316.86/x
  3. Step 3: Cross multiply
    39,190.40x = 58,729.56 × 31,316.86
  4. Step 4: Simplify right side
    39,190.40x = 1,839,225,540.51
  5. Step 5: Solve for x
    x = 1,839,225,540.51/39,190.40
  6. Step 6: Final answer
    x = 46,930.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.