Home / 39,820.17-59,767.21-20,112.57

Finding the Fourth Proportional to 39,820.17, 59,767.21 and 20,112.57

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Solution

The fourth proportional to 39,820.17, 59,767.21 and 20,112.57 is: 30,187.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,820.17 : 59,767.21 = 20,112.57 : x
  2. Step 2: Convert to fraction form
    39,820.17/59,767.21 = 20,112.57/x
  3. Step 3: Cross multiply
    39,820.17x = 59,767.21 × 20,112.57
  4. Step 4: Simplify right side
    39,820.17x = 1,202,072,194.83
  5. Step 5: Solve for x
    x = 1,202,072,194.83/39,820.17
  6. Step 6: Final answer
    x = 30,187.52

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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.