Home / 28,126.20-38,818.24-16,189.44

Finding the Fourth Proportional to 28,126.20, 38,818.24 and 16,189.44

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Solution

The fourth proportional to 28,126.20, 38,818.24 and 16,189.44 is: 22,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.20 : 38,818.24 = 16,189.44 : x
  2. Step 2: Convert to fraction form
    28,126.20/38,818.24 = 16,189.44/x
  3. Step 3: Cross multiply
    28,126.20x = 38,818.24 × 16,189.44
  4. Step 4: Simplify right side
    28,126.20x = 628,445,381.34
  5. Step 5: Solve for x
    x = 628,445,381.34/28,126.20
  6. Step 6: Final answer
    x = 22,343.77

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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.