Home / 19,784.70-27,309.24-13,076.28

Finding the Fourth Proportional to 19,784.70, 27,309.24 and 13,076.28

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Solution

The fourth proportional to 19,784.70, 27,309.24 and 13,076.28 is: 18,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.70 : 27,309.24 = 13,076.28 : x
  2. Step 2: Convert to fraction form
    19,784.70/27,309.24 = 13,076.28/x
  3. Step 3: Cross multiply
    19,784.70x = 27,309.24 × 13,076.28
  4. Step 4: Simplify right side
    19,784.70x = 357,103,268.83
  5. Step 5: Solve for x
    x = 357,103,268.83/19,784.70
  6. Step 6: Final answer
    x = 18,049.47

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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.