Home / 19,586.64-27,033.76-15,329.28

Finding the Fourth Proportional to 19,586.64, 27,033.76 and 15,329.28

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Solution

The fourth proportional to 19,586.64, 27,033.76 and 15,329.28 is: 21,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.64 : 27,033.76 = 15,329.28 : x
  2. Step 2: Convert to fraction form
    19,586.64/27,033.76 = 15,329.28/x
  3. Step 3: Cross multiply
    19,586.64x = 27,033.76 × 15,329.28
  4. Step 4: Simplify right side
    19,586.64x = 414,408,076.49
  5. Step 5: Solve for x
    x = 414,408,076.49/19,586.64
  6. Step 6: Final answer
    x = 21,157.69

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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.