Home / 39,820.56-59,767.74-20,112.93

Finding the Fourth Proportional to 39,820.56, 59,767.74 and 20,112.93

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Solution

The fourth proportional to 39,820.56, 59,767.74 and 20,112.93 is: 30,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,820.56 : 59,767.74 = 20,112.93 : x
  2. Step 2: Convert to fraction form
    39,820.56/59,767.74 = 20,112.93/x
  3. Step 3: Cross multiply
    39,820.56x = 59,767.74 × 20,112.93
  4. Step 4: Simplify right side
    39,820.56x = 1,202,104,370.88
  5. Step 5: Solve for x
    x = 1,202,104,370.88/39,820.56
  6. Step 6: Final answer
    x = 30,188.03

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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.