Home / 28,236.21-38,960.39-16,749

Finding the Fourth Proportional to 28,236.21, 38,960.39 and 16,749

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Solution

The fourth proportional to 28,236.21, 38,960.39 and 16,749 is: 23,110.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.21 : 38,960.39 = 16,749 : x
  2. Step 2: Convert to fraction form
    28,236.21/38,960.39 = 16,749/x
  3. Step 3: Cross multiply
    28,236.21x = 38,960.39 × 16,749
  4. Step 4: Simplify right side
    28,236.21x = 652,547,488.37
  5. Step 5: Solve for x
    x = 652,547,488.37/28,236.21
  6. Step 6: Final answer
    x = 23,110.31

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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.