Home / 20,837.02-28,753.98-11,403.76

Finding the Fourth Proportional to 20,837.02, 28,753.98 and 11,403.76

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Solution

The fourth proportional to 20,837.02, 28,753.98 and 11,403.76 is: 15,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.02 : 28,753.98 = 11,403.76 : x
  2. Step 2: Convert to fraction form
    20,837.02/28,753.98 = 11,403.76/x
  3. Step 3: Cross multiply
    20,837.02x = 28,753.98 × 11,403.76
  4. Step 4: Simplify right side
    20,837.02x = 327,903,486.96
  5. Step 5: Solve for x
    x = 327,903,486.96/20,837.02
  6. Step 6: Final answer
    x = 15,736.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.