Home / 19,204.80-28,789.92-9,960

Finding the Fourth Proportional to 19,204.80, 28,789.92 and 9,960

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Solution

The fourth proportional to 19,204.80, 28,789.92 and 9,960 is: 14,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,204.80 : 28,789.92 = 9,960 : x
  2. Step 2: Convert to fraction form
    19,204.80/28,789.92 = 9,960/x
  3. Step 3: Cross multiply
    19,204.80x = 28,789.92 × 9,960
  4. Step 4: Simplify right side
    19,204.80x = 286,747,603.20
  5. Step 5: Solve for x
    x = 286,747,603.20/19,204.80
  6. Step 6: Final answer
    x = 14,931.04

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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.