Home / 32,728.80-49,028.40-18,861.60

Finding the Fourth Proportional to 32,728.80, 49,028.40 and 18,861.60

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Solution

The fourth proportional to 32,728.80, 49,028.40 and 18,861.60 is: 28,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.80 : 49,028.40 = 18,861.60 : x
  2. Step 2: Convert to fraction form
    32,728.80/49,028.40 = 18,861.60/x
  3. Step 3: Cross multiply
    32,728.80x = 49,028.40 × 18,861.60
  4. Step 4: Simplify right side
    32,728.80x = 924,754,069.44
  5. Step 5: Solve for x
    x = 924,754,069.44/32,728.80
  6. Step 6: Final answer
    x = 28,255.06

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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.