Home / 28,546.70-39,393.64-15,800.41

Finding the Fourth Proportional to 28,546.70, 39,393.64 and 15,800.41

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Solution

The fourth proportional to 28,546.70, 39,393.64 and 15,800.41 is: 21,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.70 : 39,393.64 = 15,800.41 : x
  2. Step 2: Convert to fraction form
    28,546.70/39,393.64 = 15,800.41/x
  3. Step 3: Cross multiply
    28,546.70x = 39,393.64 × 15,800.41
  4. Step 4: Simplify right side
    28,546.70x = 622,435,387.42
  5. Step 5: Solve for x
    x = 622,435,387.42/28,546.70
  6. Step 6: Final answer
    x = 21,804.11

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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.