Home / 20,728.52-31,095.86-6,683.92

Finding the Fourth Proportional to 20,728.52, 31,095.86 and 6,683.92

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Solution

The fourth proportional to 20,728.52, 31,095.86 and 6,683.92 is: 10,026.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728.52 : 31,095.86 = 6,683.92 : x
  2. Step 2: Convert to fraction form
    20,728.52/31,095.86 = 6,683.92/x
  3. Step 3: Cross multiply
    20,728.52x = 31,095.86 × 6,683.92
  4. Step 4: Simplify right side
    20,728.52x = 207,842,240.57
  5. Step 5: Solve for x
    x = 207,842,240.57/20,728.52
  6. Step 6: Final answer
    x = 10,026.87

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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.