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Finding the Fourth Proportional to 25,703.67, 35,472.90 and 15,630.24

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Solution

The fourth proportional to 25,703.67, 35,472.90 and 15,630.24 is: 21,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,703.67 : 35,472.90 = 15,630.24 : x
  2. Step 2: Convert to fraction form
    25,703.67/35,472.90 = 15,630.24/x
  3. Step 3: Cross multiply
    25,703.67x = 35,472.90 × 15,630.24
  4. Step 4: Simplify right side
    25,703.67x = 554,449,940.50
  5. Step 5: Solve for x
    x = 554,449,940.50/25,703.67
  6. Step 6: Final answer
    x = 21,570.85

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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.