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Finding the Fourth Proportional to 32,028.80, 48,014.40 and 20,940.80

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Solution

The fourth proportional to 32,028.80, 48,014.40 and 20,940.80 is: 31,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,028.80 : 48,014.40 = 20,940.80 : x
  2. Step 2: Convert to fraction form
    32,028.80/48,014.40 = 20,940.80/x
  3. Step 3: Cross multiply
    32,028.80x = 48,014.40 × 20,940.80
  4. Step 4: Simplify right side
    32,028.80x = 1,005,459,947.52
  5. Step 5: Solve for x
    x = 1,005,459,947.52/32,028.80
  6. Step 6: Final answer
    x = 31,392.37

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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.