Home / 20,264.56-27,976.72-15,446.68

Finding the Fourth Proportional to 20,264.56, 27,976.72 and 15,446.68

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Solution

The fourth proportional to 20,264.56, 27,976.72 and 15,446.68 is: 21,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.56 : 27,976.72 = 15,446.68 : x
  2. Step 2: Convert to fraction form
    20,264.56/27,976.72 = 15,446.68/x
  3. Step 3: Cross multiply
    20,264.56x = 27,976.72 × 15,446.68
  4. Step 4: Simplify right side
    20,264.56x = 432,147,441.29
  5. Step 5: Solve for x
    x = 432,147,441.29/20,264.56
  6. Step 6: Final answer
    x = 21,325.28

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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.