Home / 39,313.20-58,958.86-13,020

Finding the Fourth Proportional to 39,313.20, 58,958.86 and 13,020

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Solution

The fourth proportional to 39,313.20, 58,958.86 and 13,020 is: 19,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.20 : 58,958.86 = 13,020 : x
  2. Step 2: Convert to fraction form
    39,313.20/58,958.86 = 13,020/x
  3. Step 3: Cross multiply
    39,313.20x = 58,958.86 × 13,020
  4. Step 4: Simplify right side
    39,313.20x = 767,644,357.20
  5. Step 5: Solve for x
    x = 767,644,357.20/39,313.20
  6. Step 6: Final answer
    x = 19,526.38

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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.