Home / 21,658.50-29,893.32-14,861.79

Finding the Fourth Proportional to 21,658.50, 29,893.32 and 14,861.79

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Solution

The fourth proportional to 21,658.50, 29,893.32 and 14,861.79 is: 20,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.50 : 29,893.32 = 14,861.79 : x
  2. Step 2: Convert to fraction form
    21,658.50/29,893.32 = 14,861.79/x
  3. Step 3: Cross multiply
    21,658.50x = 29,893.32 × 14,861.79
  4. Step 4: Simplify right side
    21,658.50x = 444,268,244.24
  5. Step 5: Solve for x
    x = 444,268,244.24/21,658.50
  6. Step 6: Final answer
    x = 20,512.42

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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.