Home / 20,873.40-28,816.38-14,194.68

Finding the Fourth Proportional to 20,873.40, 28,816.38 and 14,194.68

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Solution

The fourth proportional to 20,873.40, 28,816.38 and 14,194.68 is: 19,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.40 : 28,816.38 = 14,194.68 : x
  2. Step 2: Convert to fraction form
    20,873.40/28,816.38 = 14,194.68/x
  3. Step 3: Cross multiply
    20,873.40x = 28,816.38 × 14,194.68
  4. Step 4: Simplify right side
    20,873.40x = 409,039,292.86
  5. Step 5: Solve for x
    x = 409,039,292.86/20,873.40
  6. Step 6: Final answer
    x = 19,596.20

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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.