Home / 28,288.26-39,039.03-15,713.01

Finding the Fourth Proportional to 28,288.26, 39,039.03 and 15,713.01

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Solution

The fourth proportional to 28,288.26, 39,039.03 and 15,713.01 is: 21,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.26 : 39,039.03 = 15,713.01 : x
  2. Step 2: Convert to fraction form
    28,288.26/39,039.03 = 15,713.01/x
  3. Step 3: Cross multiply
    28,288.26x = 39,039.03 × 15,713.01
  4. Step 4: Simplify right side
    28,288.26x = 613,420,434.30
  5. Step 5: Solve for x
    x = 613,420,434.30/28,288.26
  6. Step 6: Final answer
    x = 21,684.63

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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.