Home / 19,983.99-27,578.73-11,488.77

Finding the Fourth Proportional to 19,983.99, 27,578.73 and 11,488.77

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Solution

The fourth proportional to 19,983.99, 27,578.73 and 11,488.77 is: 15,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.99 : 27,578.73 = 11,488.77 : x
  2. Step 2: Convert to fraction form
    19,983.99/27,578.73 = 11,488.77/x
  3. Step 3: Cross multiply
    19,983.99x = 27,578.73 × 11,488.77
  4. Step 4: Simplify right side
    19,983.99x = 316,845,685.86
  5. Step 5: Solve for x
    x = 316,845,685.86/19,983.99
  6. Step 6: Final answer
    x = 15,854.98

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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.