Home / 39,422.80-59,112.33-13,113.19

Finding the Fourth Proportional to 39,422.80, 59,112.33 and 13,113.19

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Solution

The fourth proportional to 39,422.80, 59,112.33 and 13,113.19 is: 19,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,422.80 : 59,112.33 = 13,113.19 : x
  2. Step 2: Convert to fraction form
    39,422.80/59,112.33 = 13,113.19/x
  3. Step 3: Cross multiply
    39,422.80x = 59,112.33 × 13,113.19
  4. Step 4: Simplify right side
    39,422.80x = 775,151,313.11
  5. Step 5: Solve for x
    x = 775,151,313.11/39,422.80
  6. Step 6: Final answer
    x = 19,662.51

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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.