Home / 28,439.41-39,247.46-15,866.59

Finding the Fourth Proportional to 28,439.41, 39,247.46 and 15,866.59

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Solution

The fourth proportional to 28,439.41, 39,247.46 and 15,866.59 is: 21,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.41 : 39,247.46 = 15,866.59 : x
  2. Step 2: Convert to fraction form
    28,439.41/39,247.46 = 15,866.59/x
  3. Step 3: Cross multiply
    28,439.41x = 39,247.46 × 15,866.59
  4. Step 4: Simplify right side
    28,439.41x = 622,723,277.03
  5. Step 5: Solve for x
    x = 622,723,277.03/28,439.41
  6. Step 6: Final answer
    x = 21,896.49

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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.