Home / 23,748.12-32,750.72-20,389.86

Finding the Fourth Proportional to 23,748.12, 32,750.72 and 20,389.86

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Solution

The fourth proportional to 23,748.12, 32,750.72 and 20,389.86 is: 28,119.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,748.12 : 32,750.72 = 20,389.86 : x
  2. Step 2: Convert to fraction form
    23,748.12/32,750.72 = 20,389.86/x
  3. Step 3: Cross multiply
    23,748.12x = 32,750.72 × 20,389.86
  4. Step 4: Simplify right side
    23,748.12x = 667,782,595.70
  5. Step 5: Solve for x
    x = 667,782,595.70/23,748.12
  6. Step 6: Final answer
    x = 28,119.39

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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.