Home / 42,382.72-63,579.92-14,310.80

Finding the Fourth Proportional to 42,382.72, 63,579.92 and 14,310.80

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Solution

The fourth proportional to 42,382.72, 63,579.92 and 14,310.80 is: 21,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,382.72 : 63,579.92 = 14,310.80 : x
  2. Step 2: Convert to fraction form
    42,382.72/63,579.92 = 14,310.80/x
  3. Step 3: Cross multiply
    42,382.72x = 63,579.92 × 14,310.80
  4. Step 4: Simplify right side
    42,382.72x = 909,879,519.14
  5. Step 5: Solve for x
    x = 909,879,519.14/42,382.72
  6. Step 6: Final answer
    x = 21,468.17

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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.