Home / 31,830.79-47,936.61-28,993.28

Finding the Fourth Proportional to 31,830.79, 47,936.61 and 28,993.28

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Solution

The fourth proportional to 31,830.79, 47,936.61 and 28,993.28 is: 43,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,830.79 : 47,936.61 = 28,993.28 : x
  2. Step 2: Convert to fraction form
    31,830.79/47,936.61 = 28,993.28/x
  3. Step 3: Cross multiply
    31,830.79x = 47,936.61 × 28,993.28
  4. Step 4: Simplify right side
    31,830.79x = 1,389,839,555.98
  5. Step 5: Solve for x
    x = 1,389,839,555.98/31,830.79
  6. Step 6: Final answer
    x = 43,663.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.