Home / 31,709.94-47,560.80-11,985.93

Finding the Fourth Proportional to 31,709.94, 47,560.80 and 11,985.93

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Solution

The fourth proportional to 31,709.94, 47,560.80 and 11,985.93 is: 17,977.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709.94 : 47,560.80 = 11,985.93 : x
  2. Step 2: Convert to fraction form
    31,709.94/47,560.80 = 11,985.93/x
  3. Step 3: Cross multiply
    31,709.94x = 47,560.80 × 11,985.93
  4. Step 4: Simplify right side
    31,709.94x = 570,060,419.54
  5. Step 5: Solve for x
    x = 570,060,419.54/31,709.94
  6. Step 6: Final answer
    x = 17,977.34

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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.