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Finding the Fourth Proportional to 32,009.80, 48,014.70 and 28,640.20

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Solution

The fourth proportional to 32,009.80, 48,014.70 and 28,640.20 is: 42,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,009.80 : 48,014.70 = 28,640.20 : x
  2. Step 2: Convert to fraction form
    32,009.80/48,014.70 = 28,640.20/x
  3. Step 3: Cross multiply
    32,009.80x = 48,014.70 × 28,640.20
  4. Step 4: Simplify right side
    32,009.80x = 1,375,150,610.94
  5. Step 5: Solve for x
    x = 1,375,150,610.94/32,009.80
  6. Step 6: Final answer
    x = 42,960.30

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1.5x scale

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.