Home / 21,187.28-29,251.32-16,462.64

Finding the Fourth Proportional to 21,187.28, 29,251.32 and 16,462.64

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Solution

The fourth proportional to 21,187.28, 29,251.32 and 16,462.64 is: 22,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.28 : 29,251.32 = 16,462.64 : x
  2. Step 2: Convert to fraction form
    21,187.28/29,251.32 = 16,462.64/x
  3. Step 3: Cross multiply
    21,187.28x = 29,251.32 × 16,462.64
  4. Step 4: Simplify right side
    21,187.28x = 481,553,950.68
  5. Step 5: Solve for x
    x = 481,553,950.68/21,187.28
  6. Step 6: Final answer
    x = 22,728.45

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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.