Home / 28,324.28-39,087.54-15,749

Finding the Fourth Proportional to 28,324.28, 39,087.54 and 15,749

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Solution

The fourth proportional to 28,324.28, 39,087.54 and 15,749 is: 21,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.28 : 39,087.54 = 15,749 : x
  2. Step 2: Convert to fraction form
    28,324.28/39,087.54 = 15,749/x
  3. Step 3: Cross multiply
    28,324.28x = 39,087.54 × 15,749
  4. Step 4: Simplify right side
    28,324.28x = 615,589,667.46
  5. Step 5: Solve for x
    x = 615,589,667.46/28,324.28
  6. Step 6: Final answer
    x = 21,733.64

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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.