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Finding the Fourth Proportional to 32,003.40, 47,907.90 and 28,504.20

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Solution

The fourth proportional to 32,003.40, 47,907.90 and 28,504.20 is: 42,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,003.40 : 47,907.90 = 28,504.20 : x
  2. Step 2: Convert to fraction form
    32,003.40/47,907.90 = 28,504.20/x
  3. Step 3: Cross multiply
    32,003.40x = 47,907.90 × 28,504.20
  4. Step 4: Simplify right side
    32,003.40x = 1,365,576,363.18
  5. Step 5: Solve for x
    x = 1,365,576,363.18/32,003.40
  6. Step 6: Final answer
    x = 42,669.73

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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.