Home / 21,282.26-31,943.08-10,759.70

Finding the Fourth Proportional to 21,282.26, 31,943.08 and 10,759.70

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Solution

The fourth proportional to 21,282.26, 31,943.08 and 10,759.70 is: 16,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.26 : 31,943.08 = 10,759.70 : x
  2. Step 2: Convert to fraction form
    21,282.26/31,943.08 = 10,759.70/x
  3. Step 3: Cross multiply
    21,282.26x = 31,943.08 × 10,759.70
  4. Step 4: Simplify right side
    21,282.26x = 343,698,051.18
  5. Step 5: Solve for x
    x = 343,698,051.18/21,282.26
  6. Step 6: Final answer
    x = 16,149.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.