Home / 19,203.12-28,789.68-8,807.52

Finding the Fourth Proportional to 19,203.12, 28,789.68 and 8,807.52

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Solution

The fourth proportional to 19,203.12, 28,789.68 and 8,807.52 is: 13,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.12 : 28,789.68 = 8,807.52 : x
  2. Step 2: Convert to fraction form
    19,203.12/28,789.68 = 8,807.52/x
  3. Step 3: Cross multiply
    19,203.12x = 28,789.68 × 8,807.52
  4. Step 4: Simplify right side
    19,203.12x = 253,565,682.39
  5. Step 5: Solve for x
    x = 253,565,682.39/19,203.12
  6. Step 6: Final answer
    x = 13,204.40

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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.