Home / 31,683.77-43,716.61-18,935.04

Finding the Fourth Proportional to 31,683.77, 43,716.61 and 18,935.04

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Solution

The fourth proportional to 31,683.77, 43,716.61 and 18,935.04 is: 26,126.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.77 : 43,716.61 = 18,935.04 : x
  2. Step 2: Convert to fraction form
    31,683.77/43,716.61 = 18,935.04/x
  3. Step 3: Cross multiply
    31,683.77x = 43,716.61 × 18,935.04
  4. Step 4: Simplify right side
    31,683.77x = 827,775,759.01
  5. Step 5: Solve for x
    x = 827,775,759.01/31,683.77
  6. Step 6: Final answer
    x = 26,126.18

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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.