Home / 20,064.88-30,069.96-11,727.28

Finding the Fourth Proportional to 20,064.88, 30,069.96 and 11,727.28

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Solution

The fourth proportional to 20,064.88, 30,069.96 and 11,727.28 is: 17,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.88 : 30,069.96 = 11,727.28 : x
  2. Step 2: Convert to fraction form
    20,064.88/30,069.96 = 11,727.28/x
  3. Step 3: Cross multiply
    20,064.88x = 30,069.96 × 11,727.28
  4. Step 4: Simplify right side
    20,064.88x = 352,638,840.51
  5. Step 5: Solve for x
    x = 352,638,840.51/20,064.88
  6. Step 6: Final answer
    x = 17,574.93

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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.