Home / 19,983.51-27,578.16-11,488.39

Finding the Fourth Proportional to 19,983.51, 27,578.16 and 11,488.39

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Solution

The fourth proportional to 19,983.51, 27,578.16 and 11,488.39 is: 15,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.51 : 27,578.16 = 11,488.39 : x
  2. Step 2: Convert to fraction form
    19,983.51/27,578.16 = 11,488.39/x
  3. Step 3: Cross multiply
    19,983.51x = 27,578.16 × 11,488.39
  4. Step 4: Simplify right side
    19,983.51x = 316,828,588.62
  5. Step 5: Solve for x
    x = 316,828,588.62/19,983.51
  6. Step 6: Final answer
    x = 15,854.50

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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.