Home / 18,785.86-25,872.20-14,521.22

Finding the Fourth Proportional to 18,785.86, 25,872.20 and 14,521.22

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Solution

The fourth proportional to 18,785.86, 25,872.20 and 14,521.22 is: 19,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.86 : 25,872.20 = 14,521.22 : x
  2. Step 2: Convert to fraction form
    18,785.86/25,872.20 = 14,521.22/x
  3. Step 3: Cross multiply
    18,785.86x = 25,872.20 × 14,521.22
  4. Step 4: Simplify right side
    18,785.86x = 375,695,908.08
  5. Step 5: Solve for x
    x = 375,695,908.08/18,785.86
  6. Step 6: Final answer
    x = 19,998.87

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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.