Home / 28,170.22-42,274.50-15,031.84

Finding the Fourth Proportional to 28,170.22, 42,274.50 and 15,031.84

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Solution

The fourth proportional to 28,170.22, 42,274.50 and 15,031.84 is: 22,557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.22 : 42,274.50 = 15,031.84 : x
  2. Step 2: Convert to fraction form
    28,170.22/42,274.50 = 15,031.84/x
  3. Step 3: Cross multiply
    28,170.22x = 42,274.50 × 15,031.84
  4. Step 4: Simplify right side
    28,170.22x = 635,463,520.08
  5. Step 5: Solve for x
    x = 635,463,520.08/28,170.22
  6. Step 6: Final answer
    x = 22,557.99

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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.