Home / 20,150.40-27,816.30-13,079.10

Finding the Fourth Proportional to 20,150.40, 27,816.30 and 13,079.10

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Solution

The fourth proportional to 20,150.40, 27,816.30 and 13,079.10 is: 18,054.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.40 : 27,816.30 = 13,079.10 : x
  2. Step 2: Convert to fraction form
    20,150.40/27,816.30 = 13,079.10/x
  3. Step 3: Cross multiply
    20,150.40x = 27,816.30 × 13,079.10
  4. Step 4: Simplify right side
    20,150.40x = 363,812,169.33
  5. Step 5: Solve for x
    x = 363,812,169.33/20,150.40
  6. Step 6: Final answer
    x = 18,054.84

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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.