Home / 31,713.94-47,566.80-11,989.93

Finding the Fourth Proportional to 31,713.94, 47,566.80 and 11,989.93

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Solution

The fourth proportional to 31,713.94, 47,566.80 and 11,989.93 is: 17,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,713.94 : 47,566.80 = 11,989.93 : x
  2. Step 2: Convert to fraction form
    31,713.94/47,566.80 = 11,989.93/x
  3. Step 3: Cross multiply
    31,713.94x = 47,566.80 × 11,989.93
  4. Step 4: Simplify right side
    31,713.94x = 570,322,602.32
  5. Step 5: Solve for x
    x = 570,322,602.32/31,713.94
  6. Step 6: Final answer
    x = 17,983.34

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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.