Home / 19,247.20-28,838.40-9,365.20

Finding the Fourth Proportional to 19,247.20, 28,838.40 and 9,365.20

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Solution

The fourth proportional to 19,247.20, 28,838.40 and 9,365.20 is: 14,032.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.20 : 28,838.40 = 9,365.20 : x
  2. Step 2: Convert to fraction form
    19,247.20/28,838.40 = 9,365.20/x
  3. Step 3: Cross multiply
    19,247.20x = 28,838.40 × 9,365.20
  4. Step 4: Simplify right side
    19,247.20x = 270,077,383.68
  5. Step 5: Solve for x
    x = 270,077,383.68/19,247.20
  6. Step 6: Final answer
    x = 14,032.03

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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.