Home / 21,661.98-29,898.27-13,714.80

Finding the Fourth Proportional to 21,661.98, 29,898.27 and 13,714.80

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Solution

The fourth proportional to 21,661.98, 29,898.27 and 13,714.80 is: 18,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.98 : 29,898.27 = 13,714.80 : x
  2. Step 2: Convert to fraction form
    21,661.98/29,898.27 = 13,714.80/x
  3. Step 3: Cross multiply
    21,661.98x = 29,898.27 × 13,714.80
  4. Step 4: Simplify right side
    21,661.98x = 410,048,793.40
  5. Step 5: Solve for x
    x = 410,048,793.40/21,661.98
  6. Step 6: Final answer
    x = 18,929.42

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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.