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Finding the Fourth Proportional to 30,560.50, 45,848.43 and 8,672.50

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Solution

The fourth proportional to 30,560.50, 45,848.43 and 8,672.50 is: 13,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.50 : 45,848.43 = 8,672.50 : x
  2. Step 2: Convert to fraction form
    30,560.50/45,848.43 = 8,672.50/x
  3. Step 3: Cross multiply
    30,560.50x = 45,848.43 × 8,672.50
  4. Step 4: Simplify right side
    30,560.50x = 397,620,509.18
  5. Step 5: Solve for x
    x = 397,620,509.18/30,560.50
  6. Step 6: Final answer
    x = 13,010.93

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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.