Home / 21,524.70-32,281.20-13,615.34

Finding the Fourth Proportional to 21,524.70, 32,281.20 and 13,615.34

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Solution

The fourth proportional to 21,524.70, 32,281.20 and 13,615.34 is: 20,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,524.70 : 32,281.20 = 13,615.34 : x
  2. Step 2: Convert to fraction form
    21,524.70/32,281.20 = 13,615.34/x
  3. Step 3: Cross multiply
    21,524.70x = 32,281.20 × 13,615.34
  4. Step 4: Simplify right side
    21,524.70x = 439,519,533.78
  5. Step 5: Solve for x
    x = 439,519,533.78/21,524.70
  6. Step 6: Final answer
    x = 20,419.31

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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.