Home / 20,339.54-30,502.16-6,103.78

Finding the Fourth Proportional to 20,339.54, 30,502.16 and 6,103.78

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Solution

The fourth proportional to 20,339.54, 30,502.16 and 6,103.78 is: 9,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.54 : 30,502.16 = 6,103.78 : x
  2. Step 2: Convert to fraction form
    20,339.54/30,502.16 = 6,103.78/x
  3. Step 3: Cross multiply
    20,339.54x = 30,502.16 × 6,103.78
  4. Step 4: Simplify right side
    20,339.54x = 186,178,474.16
  5. Step 5: Solve for x
    x = 186,178,474.16/20,339.54
  6. Step 6: Final answer
    x = 9,153.52

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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.