Home / 47,701.12-71,544.96-12,643.84

Finding the Fourth Proportional to 47,701.12, 71,544.96 and 12,643.84

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Solution

The fourth proportional to 47,701.12, 71,544.96 and 12,643.84 is: 18,963.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,701.12 : 71,544.96 = 12,643.84 : x
  2. Step 2: Convert to fraction form
    47,701.12/71,544.96 = 12,643.84/x
  3. Step 3: Cross multiply
    47,701.12x = 71,544.96 × 12,643.84
  4. Step 4: Simplify right side
    47,701.12x = 904,603,027.05
  5. Step 5: Solve for x
    x = 904,603,027.05/47,701.12
  6. Step 6: Final answer
    x = 18,963.98

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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.