Home / 39,139.39-58,635.27-30,331.25

Finding the Fourth Proportional to 39,139.39, 58,635.27 and 30,331.25

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Solution

The fourth proportional to 39,139.39, 58,635.27 and 30,331.25 is: 45,439.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.39 : 58,635.27 = 30,331.25 : x
  2. Step 2: Convert to fraction form
    39,139.39/58,635.27 = 30,331.25/x
  3. Step 3: Cross multiply
    39,139.39x = 58,635.27 × 30,331.25
  4. Step 4: Simplify right side
    39,139.39x = 1,778,481,033.19
  5. Step 5: Solve for x
    x = 1,778,481,033.19/39,139.39
  6. Step 6: Final answer
    x = 45,439.67

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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.