Home / 31,369.40-43,283.39-17,945.17

Finding the Fourth Proportional to 31,369.40, 43,283.39 and 17,945.17

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Solution

The fourth proportional to 31,369.40, 43,283.39 and 17,945.17 is: 24,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.40 : 43,283.39 = 17,945.17 : x
  2. Step 2: Convert to fraction form
    31,369.40/43,283.39 = 17,945.17/x
  3. Step 3: Cross multiply
    31,369.40x = 43,283.39 × 17,945.17
  4. Step 4: Simplify right side
    31,369.40x = 776,727,756.10
  5. Step 5: Solve for x
    x = 776,727,756.10/31,369.40
  6. Step 6: Final answer
    x = 24,760.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.