Home / 20,553.61-30,833.64-8,707.42

Finding the Fourth Proportional to 20,553.61, 30,833.64 and 8,707.42

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Solution

The fourth proportional to 20,553.61, 30,833.64 and 8,707.42 is: 13,062.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.61 : 30,833.64 = 8,707.42 : x
  2. Step 2: Convert to fraction form
    20,553.61/30,833.64 = 8,707.42/x
  3. Step 3: Cross multiply
    20,553.61x = 30,833.64 × 8,707.42
  4. Step 4: Simplify right side
    20,553.61x = 268,481,376.52
  5. Step 5: Solve for x
    x = 268,481,376.52/20,553.61
  6. Step 6: Final answer
    x = 13,062.49

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1.5x scale

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.