Home / 21,578.92-29,761.86-14,125.48

Finding the Fourth Proportional to 21,578.92, 29,761.86 and 14,125.48

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Solution

The fourth proportional to 21,578.92, 29,761.86 and 14,125.48 is: 19,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.92 : 29,761.86 = 14,125.48 : x
  2. Step 2: Convert to fraction form
    21,578.92/29,761.86 = 14,125.48/x
  3. Step 3: Cross multiply
    21,578.92x = 29,761.86 × 14,125.48
  4. Step 4: Simplify right side
    21,578.92x = 420,400,558.19
  5. Step 5: Solve for x
    x = 420,400,558.19/21,578.92
  6. Step 6: Final answer
    x = 19,482.00

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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.