Home / 21,401.70-32,102.55-15,496.80

Finding the Fourth Proportional to 21,401.70, 32,102.55 and 15,496.80

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Solution

The fourth proportional to 21,401.70, 32,102.55 and 15,496.80 is: 23,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.70 : 32,102.55 = 15,496.80 : x
  2. Step 2: Convert to fraction form
    21,401.70/32,102.55 = 15,496.80/x
  3. Step 3: Cross multiply
    21,401.70x = 32,102.55 × 15,496.80
  4. Step 4: Simplify right side
    21,401.70x = 497,486,796.84
  5. Step 5: Solve for x
    x = 497,486,796.84/21,401.70
  6. Step 6: Final answer
    x = 23,245.20

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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.