Home / 19,388.48-29,078.72-5,534.40

Finding the Fourth Proportional to 19,388.48, 29,078.72 and 5,534.40

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Solution

The fourth proportional to 19,388.48, 29,078.72 and 5,534.40 is: 8,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.48 : 29,078.72 = 5,534.40 : x
  2. Step 2: Convert to fraction form
    19,388.48/29,078.72 = 5,534.40/x
  3. Step 3: Cross multiply
    19,388.48x = 29,078.72 × 5,534.40
  4. Step 4: Simplify right side
    19,388.48x = 160,933,267.97
  5. Step 5: Solve for x
    x = 160,933,267.97/19,388.48
  6. Step 6: Final answer
    x = 8,300.46

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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.