Home / 28,460.70-39,277.94-15,716.34

Finding the Fourth Proportional to 28,460.70, 39,277.94 and 15,716.34

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Solution

The fourth proportional to 28,460.70, 39,277.94 and 15,716.34 is: 21,689.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,460.70 : 39,277.94 = 15,716.34 : x
  2. Step 2: Convert to fraction form
    28,460.70/39,277.94 = 15,716.34/x
  3. Step 3: Cross multiply
    28,460.70x = 39,277.94 × 15,716.34
  4. Step 4: Simplify right side
    28,460.70x = 617,305,459.54
  5. Step 5: Solve for x
    x = 617,305,459.54/28,460.70
  6. Step 6: Final answer
    x = 21,689.75

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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.