Home / 19,288.61-28,909.79-9,933.04

Finding the Fourth Proportional to 19,288.61, 28,909.79 and 9,933.04

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Solution

The fourth proportional to 19,288.61, 28,909.79 and 9,933.04 is: 14,887.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.61 : 28,909.79 = 9,933.04 : x
  2. Step 2: Convert to fraction form
    19,288.61/28,909.79 = 9,933.04/x
  3. Step 3: Cross multiply
    19,288.61x = 28,909.79 × 9,933.04
  4. Step 4: Simplify right side
    19,288.61x = 287,162,100.46
  5. Step 5: Solve for x
    x = 287,162,100.46/19,288.61
  6. Step 6: Final answer
    x = 14,887.65

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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.