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Finding the Fourth Proportional to 30,603.78, 45,810.27 and 23,565.51

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Solution

The fourth proportional to 30,603.78, 45,810.27 and 23,565.51 is: 35,274.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603.78 : 45,810.27 = 23,565.51 : x
  2. Step 2: Convert to fraction form
    30,603.78/45,810.27 = 23,565.51/x
  3. Step 3: Cross multiply
    30,603.78x = 45,810.27 × 23,565.51
  4. Step 4: Simplify right side
    30,603.78x = 1,079,542,375.79
  5. Step 5: Solve for x
    x = 1,079,542,375.79/30,603.78
  6. Step 6: Final answer
    x = 35,274.81

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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.