Home / 20,497.28-28,288.91-11,546.51

Finding the Fourth Proportional to 20,497.28, 28,288.91 and 11,546.51

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Solution

The fourth proportional to 20,497.28, 28,288.91 and 11,546.51 is: 15,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.28 : 28,288.91 = 11,546.51 : x
  2. Step 2: Convert to fraction form
    20,497.28/28,288.91 = 11,546.51/x
  3. Step 3: Cross multiply
    20,497.28x = 28,288.91 × 11,546.51
  4. Step 4: Simplify right side
    20,497.28x = 326,638,069.63
  5. Step 5: Solve for x
    x = 326,638,069.63/20,497.28
  6. Step 6: Final answer
    x = 15,935.68

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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.