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Finding the Fourth Proportional to 20,603.34, 30,904.98 and 7,452.63

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Solution

The fourth proportional to 20,603.34, 30,904.98 and 7,452.63 is: 11,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.34 : 30,904.98 = 7,452.63 : x
  2. Step 2: Convert to fraction form
    20,603.34/30,904.98 = 7,452.63/x
  3. Step 3: Cross multiply
    20,603.34x = 30,904.98 × 7,452.63
  4. Step 4: Simplify right side
    20,603.34x = 230,323,381.10
  5. Step 5: Solve for x
    x = 230,323,381.10/20,603.34
  6. Step 6: Final answer
    x = 11,178.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.