Home / 21,579.92-29,763.24-14,126.48

Finding the Fourth Proportional to 21,579.92, 29,763.24 and 14,126.48

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Solution

The fourth proportional to 21,579.92, 29,763.24 and 14,126.48 is: 19,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.92 : 29,763.24 = 14,126.48 : x
  2. Step 2: Convert to fraction form
    21,579.92/29,763.24 = 14,126.48/x
  3. Step 3: Cross multiply
    21,579.92x = 29,763.24 × 14,126.48
  4. Step 4: Simplify right side
    21,579.92x = 420,449,814.60
  5. Step 5: Solve for x
    x = 420,449,814.60/21,579.92
  6. Step 6: Final answer
    x = 19,483.38

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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.