Home / 31,528.90-43,509.93-17,381.75

Finding the Fourth Proportional to 31,528.90, 43,509.93 and 17,381.75

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Solution

The fourth proportional to 31,528.90, 43,509.93 and 17,381.75 is: 23,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.90 : 43,509.93 = 17,381.75 : x
  2. Step 2: Convert to fraction form
    31,528.90/43,509.93 = 17,381.75/x
  3. Step 3: Cross multiply
    31,528.90x = 43,509.93 × 17,381.75
  4. Step 4: Simplify right side
    31,528.90x = 756,278,443.05
  5. Step 5: Solve for x
    x = 756,278,443.05/31,528.90
  6. Step 6: Final answer
    x = 23,986.83

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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.