Home / 31,968.88-47,969.80-14,211.79

Finding the Fourth Proportional to 31,968.88, 47,969.80 and 14,211.79

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Solution

The fourth proportional to 31,968.88, 47,969.80 and 14,211.79 is: 21,325.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,968.88 : 47,969.80 = 14,211.79 : x
  2. Step 2: Convert to fraction form
    31,968.88/47,969.80 = 14,211.79/x
  3. Step 3: Cross multiply
    31,968.88x = 47,969.80 × 14,211.79
  4. Step 4: Simplify right side
    31,968.88x = 681,736,772.81
  5. Step 5: Solve for x
    x = 681,736,772.81/31,968.88
  6. Step 6: Final answer
    x = 21,325.01

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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.