Home / 14,455.16-21,719.28-13,871.96

Finding the Fourth Proportional to 14,455.16, 21,719.28 and 13,871.96

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Solution

The fourth proportional to 14,455.16, 21,719.28 and 13,871.96 is: 20,843.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.16 : 21,719.28 = 13,871.96 : x
  2. Step 2: Convert to fraction form
    14,455.16/21,719.28 = 13,871.96/x
  3. Step 3: Cross multiply
    14,455.16x = 21,719.28 × 13,871.96
  4. Step 4: Simplify right side
    14,455.16x = 301,288,983.39
  5. Step 5: Solve for x
    x = 301,288,983.39/14,455.16
  6. Step 6: Final answer
    x = 20,843.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.