Home / 39,820.18-59,767.22-20,112.58

Finding the Fourth Proportional to 39,820.18, 59,767.22 and 20,112.58

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Solution

The fourth proportional to 39,820.18, 59,767.22 and 20,112.58 is: 30,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,820.18 : 59,767.22 = 20,112.58 : x
  2. Step 2: Convert to fraction form
    39,820.18/59,767.22 = 20,112.58/x
  3. Step 3: Cross multiply
    39,820.18x = 59,767.22 × 20,112.58
  4. Step 4: Simplify right side
    39,820.18x = 1,202,072,993.63
  5. Step 5: Solve for x
    x = 1,202,072,993.63/39,820.18
  6. Step 6: Final answer
    x = 30,187.53

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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.