Home / 21,404.40-32,033.70-19,654.80

Finding the Fourth Proportional to 21,404.40, 32,033.70 and 19,654.80

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Solution

The fourth proportional to 21,404.40, 32,033.70 and 19,654.80 is: 29,415.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.40 : 32,033.70 = 19,654.80 : x
  2. Step 2: Convert to fraction form
    21,404.40/32,033.70 = 19,654.80/x
  3. Step 3: Cross multiply
    21,404.40x = 32,033.70 × 19,654.80
  4. Step 4: Simplify right side
    21,404.40x = 629,615,966.76
  5. Step 5: Solve for x
    x = 629,615,966.76/21,404.40
  6. Step 6: Final answer
    x = 29,415.26

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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.