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Finding the Fourth Proportional to 30,451.72, 42,024.30 and 17,023.54

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Solution

The fourth proportional to 30,451.72, 42,024.30 and 17,023.54 is: 23,493.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.72 : 42,024.30 = 17,023.54 : x
  2. Step 2: Convert to fraction form
    30,451.72/42,024.30 = 17,023.54/x
  3. Step 3: Cross multiply
    30,451.72x = 42,024.30 × 17,023.54
  4. Step 4: Simplify right side
    30,451.72x = 715,402,246.96
  5. Step 5: Solve for x
    x = 715,402,246.96/30,451.72
  6. Step 6: Final answer
    x = 23,493.00

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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.