Home / 42,711.22-64,022.25-14,623

Finding the Fourth Proportional to 42,711.22, 64,022.25 and 14,623

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Solution

The fourth proportional to 42,711.22, 64,022.25 and 14,623 is: 21,919.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,711.22 : 64,022.25 = 14,623 : x
  2. Step 2: Convert to fraction form
    42,711.22/64,022.25 = 14,623/x
  3. Step 3: Cross multiply
    42,711.22x = 64,022.25 × 14,623
  4. Step 4: Simplify right side
    42,711.22x = 936,197,361.75
  5. Step 5: Solve for x
    x = 936,197,361.75/42,711.22
  6. Step 6: Final answer
    x = 21,919.24

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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.