Home / 21,703.20-29,940.29-14,048.94

Finding the Fourth Proportional to 21,703.20, 29,940.29 and 14,048.94

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Solution

The fourth proportional to 21,703.20, 29,940.29 and 14,048.94 is: 19,380.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.20 : 29,940.29 = 14,048.94 : x
  2. Step 2: Convert to fraction form
    21,703.20/29,940.29 = 14,048.94/x
  3. Step 3: Cross multiply
    21,703.20x = 29,940.29 × 14,048.94
  4. Step 4: Simplify right side
    21,703.20x = 420,629,432.51
  5. Step 5: Solve for x
    x = 420,629,432.51/21,703.20
  6. Step 6: Final answer
    x = 19,380.99

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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.