Home / 28,367.39-39,139.12-18,296.26

Finding the Fourth Proportional to 28,367.39, 39,139.12 and 18,296.26

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Solution

The fourth proportional to 28,367.39, 39,139.12 and 18,296.26 is: 25,243.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.39 : 39,139.12 = 18,296.26 : x
  2. Step 2: Convert to fraction form
    28,367.39/39,139.12 = 18,296.26/x
  3. Step 3: Cross multiply
    28,367.39x = 39,139.12 × 18,296.26
  4. Step 4: Simplify right side
    28,367.39x = 716,099,515.69
  5. Step 5: Solve for x
    x = 716,099,515.69/28,367.39
  6. Step 6: Final answer
    x = 25,243.76

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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.