Home / 31,528.25-43,509.28-17,381.60

Finding the Fourth Proportional to 31,528.25, 43,509.28 and 17,381.60

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Solution

The fourth proportional to 31,528.25, 43,509.28 and 17,381.60 is: 23,986.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.25 : 43,509.28 = 17,381.60 : x
  2. Step 2: Convert to fraction form
    31,528.25/43,509.28 = 17,381.60/x
  3. Step 3: Cross multiply
    31,528.25x = 43,509.28 × 17,381.60
  4. Step 4: Simplify right side
    31,528.25x = 756,260,683.70
  5. Step 5: Solve for x
    x = 756,260,683.70/31,528.25
  6. Step 6: Final answer
    x = 23,986.77

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