Home / 20,168.59-27,803.80-13,451.76

Finding the Fourth Proportional to 20,168.59, 27,803.80 and 13,451.76

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Solution

The fourth proportional to 20,168.59, 27,803.80 and 13,451.76 is: 18,544.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.59 : 27,803.80 = 13,451.76 : x
  2. Step 2: Convert to fraction form
    20,168.59/27,803.80 = 13,451.76/x
  3. Step 3: Cross multiply
    20,168.59x = 27,803.80 × 13,451.76
  4. Step 4: Simplify right side
    20,168.59x = 374,010,165.77
  5. Step 5: Solve for x
    x = 374,010,165.77/20,168.59
  6. Step 6: Final answer
    x = 18,544.19

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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.