Home / 28,500.96-42,728.38-11,873.49

Finding the Fourth Proportional to 28,500.96, 42,728.38 and 11,873.49

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Solution

The fourth proportional to 28,500.96, 42,728.38 and 11,873.49 is: 17,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.96 : 42,728.38 = 11,873.49 : x
  2. Step 2: Convert to fraction form
    28,500.96/42,728.38 = 11,873.49/x
  3. Step 3: Cross multiply
    28,500.96x = 42,728.38 × 11,873.49
  4. Step 4: Simplify right side
    28,500.96x = 507,334,802.73
  5. Step 5: Solve for x
    x = 507,334,802.73/28,500.96
  6. Step 6: Final answer
    x = 17,800.62

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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.