Home / 35,328.96-48,751.20-20,422.08

Finding the Fourth Proportional to 35,328.96, 48,751.20 and 20,422.08

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Solution

The fourth proportional to 35,328.96, 48,751.20 and 20,422.08 is: 28,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,328.96 : 48,751.20 = 20,422.08 : x
  2. Step 2: Convert to fraction form
    35,328.96/48,751.20 = 20,422.08/x
  3. Step 3: Cross multiply
    35,328.96x = 48,751.20 × 20,422.08
  4. Step 4: Simplify right side
    35,328.96x = 995,600,906.50
  5. Step 5: Solve for x
    x = 995,600,906.50/35,328.96
  6. Step 6: Final answer
    x = 28,180.87

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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.