Home / 21,418.40-29,552.96-14,701.56

Finding the Fourth Proportional to 21,418.40, 29,552.96 and 14,701.56

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Solution

The fourth proportional to 21,418.40, 29,552.96 and 14,701.56 is: 20,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.40 : 29,552.96 = 14,701.56 : x
  2. Step 2: Convert to fraction form
    21,418.40/29,552.96 = 14,701.56/x
  3. Step 3: Cross multiply
    21,418.40x = 29,552.96 × 14,701.56
  4. Step 4: Simplify right side
    21,418.40x = 434,474,614.62
  5. Step 5: Solve for x
    x = 434,474,614.62/21,418.40
  6. Step 6: Final answer
    x = 20,285.11

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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.