Home / 21,705.48-32,496.60-14,287.56

Finding the Fourth Proportional to 21,705.48, 32,496.60 and 14,287.56

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Solution

The fourth proportional to 21,705.48, 32,496.60 and 14,287.56 is: 21,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.48 : 32,496.60 = 14,287.56 : x
  2. Step 2: Convert to fraction form
    21,705.48/32,496.60 = 14,287.56/x
  3. Step 3: Cross multiply
    21,705.48x = 32,496.60 × 14,287.56
  4. Step 4: Simplify right side
    21,705.48x = 464,297,122.30
  5. Step 5: Solve for x
    x = 464,297,122.30/21,705.48
  6. Step 6: Final answer
    x = 21,390.78

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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.