Home / 19,563.71-27,008.38-15,305.72

Finding the Fourth Proportional to 19,563.71, 27,008.38 and 15,305.72

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Solution

The fourth proportional to 19,563.71, 27,008.38 and 15,305.72 is: 21,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,563.71 : 27,008.38 = 15,305.72 : x
  2. Step 2: Convert to fraction form
    19,563.71/27,008.38 = 15,305.72/x
  3. Step 3: Cross multiply
    19,563.71x = 27,008.38 × 15,305.72
  4. Step 4: Simplify right side
    19,563.71x = 413,382,701.93
  5. Step 5: Solve for x
    x = 413,382,701.93/19,563.71
  6. Step 6: Final answer
    x = 21,130.08

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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.