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Finding the Fourth Proportional to 17,430.51, 26,142.99 and 14,487.85

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Solution

The fourth proportional to 17,430.51, 26,142.99 and 14,487.85 is: 21,729.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,430.51 : 26,142.99 = 14,487.85 : x
  2. Step 2: Convert to fraction form
    17,430.51/26,142.99 = 14,487.85/x
  3. Step 3: Cross multiply
    17,430.51x = 26,142.99 × 14,487.85
  4. Step 4: Simplify right side
    17,430.51x = 378,755,717.67
  5. Step 5: Solve for x
    x = 378,755,717.67/17,430.51
  6. Step 6: Final answer
    x = 21,729.47

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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.