Home / 28,704.03-39,615.26-16,131.21

Finding the Fourth Proportional to 28,704.03, 39,615.26 and 16,131.21

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Solution

The fourth proportional to 28,704.03, 39,615.26 and 16,131.21 is: 22,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.03 : 39,615.26 = 16,131.21 : x
  2. Step 2: Convert to fraction form
    28,704.03/39,615.26 = 16,131.21/x
  3. Step 3: Cross multiply
    28,704.03x = 39,615.26 × 16,131.21
  4. Step 4: Simplify right side
    28,704.03x = 639,041,997.61
  5. Step 5: Solve for x
    x = 639,041,997.61/28,704.03
  6. Step 6: Final answer
    x = 22,263.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.