Home / 20,792.40-28,697.00-11,838.66

Finding the Fourth Proportional to 20,792.40, 28,697.00 and 11,838.66

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Solution

The fourth proportional to 20,792.40, 28,697.00 and 11,838.66 is: 16,339.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.40 : 28,697.00 = 11,838.66 : x
  2. Step 2: Convert to fraction form
    20,792.40/28,697.00 = 11,838.66/x
  3. Step 3: Cross multiply
    20,792.40x = 28,697.00 × 11,838.66
  4. Step 4: Simplify right side
    20,792.40x = 339,733,966.83
  5. Step 5: Solve for x
    x = 339,733,966.83/20,792.40
  6. Step 6: Final answer
    x = 16,339.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.