Home / 19,217.68-28,831.40-5,366.68

Finding the Fourth Proportional to 19,217.68, 28,831.40 and 5,366.68

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Solution

The fourth proportional to 19,217.68, 28,831.40 and 5,366.68 is: 8,051.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.68 : 28,831.40 = 5,366.68 : x
  2. Step 2: Convert to fraction form
    19,217.68/28,831.40 = 5,366.68/x
  3. Step 3: Cross multiply
    19,217.68x = 28,831.40 × 5,366.68
  4. Step 4: Simplify right side
    19,217.68x = 154,728,897.75
  5. Step 5: Solve for x
    x = 154,728,897.75/19,217.68
  6. Step 6: Final answer
    x = 8,051.38

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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.