Home / 39,820.20-59,688.36-20,057.22

Finding the Fourth Proportional to 39,820.20, 59,688.36 and 20,057.22

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Solution

The fourth proportional to 39,820.20, 59,688.36 and 20,057.22 is: 30,064.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,820.20 : 59,688.36 = 20,057.22 : x
  2. Step 2: Convert to fraction form
    39,820.20/59,688.36 = 20,057.22/x
  3. Step 3: Cross multiply
    39,820.20x = 59,688.36 × 20,057.22
  4. Step 4: Simplify right side
    39,820.20x = 1,197,182,567.96
  5. Step 5: Solve for x
    x = 1,197,182,567.96/39,820.20
  6. Step 6: Final answer
    x = 30,064.71

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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.