Home / 39,168.36-58,796.28-15,811.20

Finding the Fourth Proportional to 39,168.36, 58,796.28 and 15,811.20

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Solution

The fourth proportional to 39,168.36, 58,796.28 and 15,811.20 is: 23,734.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.36 : 58,796.28 = 15,811.20 : x
  2. Step 2: Convert to fraction form
    39,168.36/58,796.28 = 15,811.20/x
  3. Step 3: Cross multiply
    39,168.36x = 58,796.28 × 15,811.20
  4. Step 4: Simplify right side
    39,168.36x = 929,639,742.34
  5. Step 5: Solve for x
    x = 929,639,742.34/39,168.36
  6. Step 6: Final answer
    x = 23,734.46

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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.