Home / 21,721.11-32,522.40-16,440.15

Finding the Fourth Proportional to 21,721.11, 32,522.40 and 16,440.15

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Solution

The fourth proportional to 21,721.11, 32,522.40 and 16,440.15 is: 24,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,721.11 : 32,522.40 = 16,440.15 : x
  2. Step 2: Convert to fraction form
    21,721.11/32,522.40 = 16,440.15/x
  3. Step 3: Cross multiply
    21,721.11x = 32,522.40 × 16,440.15
  4. Step 4: Simplify right side
    21,721.11x = 534,673,134.36
  5. Step 5: Solve for x
    x = 534,673,134.36/21,721.11
  6. Step 6: Final answer
    x = 24,615.37

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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.