Home / 19,619.70-29,429.55-13,714.80

Finding the Fourth Proportional to 19,619.70, 29,429.55 and 13,714.80

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Solution

The fourth proportional to 19,619.70, 29,429.55 and 13,714.80 is: 20,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.70 : 29,429.55 = 13,714.80 : x
  2. Step 2: Convert to fraction form
    19,619.70/29,429.55 = 13,714.80/x
  3. Step 3: Cross multiply
    19,619.70x = 29,429.55 × 13,714.80
  4. Step 4: Simplify right side
    19,619.70x = 403,620,392.34
  5. Step 5: Solve for x
    x = 403,620,392.34/19,619.70
  6. Step 6: Final answer
    x = 20,572.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.