Home / 47,671.11-71,529.75-19,611.90

Finding the Fourth Proportional to 47,671.11, 71,529.75 and 19,611.90

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Solution

The fourth proportional to 47,671.11, 71,529.75 and 19,611.90 is: 29,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,671.11 : 71,529.75 = 19,611.90 : x
  2. Step 2: Convert to fraction form
    47,671.11/71,529.75 = 19,611.90/x
  3. Step 3: Cross multiply
    47,671.11x = 71,529.75 × 19,611.90
  4. Step 4: Simplify right side
    47,671.11x = 1,402,834,304.03
  5. Step 5: Solve for x
    x = 1,402,834,304.03/47,671.11
  6. Step 6: Final answer
    x = 29,427.35

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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.