Home / 21,885.21-32,771.12-15,937.65

Finding the Fourth Proportional to 21,885.21, 32,771.12 and 15,937.65

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Solution

The fourth proportional to 21,885.21, 32,771.12 and 15,937.65 is: 23,865.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885.21 : 32,771.12 = 15,937.65 : x
  2. Step 2: Convert to fraction form
    21,885.21/32,771.12 = 15,937.65/x
  3. Step 3: Cross multiply
    21,885.21x = 32,771.12 × 15,937.65
  4. Step 4: Simplify right side
    21,885.21x = 522,294,560.98
  5. Step 5: Solve for x
    x = 522,294,560.98/21,885.21
  6. Step 6: Final answer
    x = 23,865.18

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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.