Home / 28,496.30-39,324.78-15,749.10

Finding the Fourth Proportional to 28,496.30, 39,324.78 and 15,749.10

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Solution

The fourth proportional to 28,496.30, 39,324.78 and 15,749.10 is: 21,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496.30 : 39,324.78 = 15,749.10 : x
  2. Step 2: Convert to fraction form
    28,496.30/39,324.78 = 15,749.10/x
  3. Step 3: Cross multiply
    28,496.30x = 39,324.78 × 15,749.10
  4. Step 4: Simplify right side
    28,496.30x = 619,329,892.70
  5. Step 5: Solve for x
    x = 619,329,892.70/28,496.30
  6. Step 6: Final answer
    x = 21,733.70

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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.