Home / 19,984.01-27,578.85-11,488.89

Finding the Fourth Proportional to 19,984.01, 27,578.85 and 11,488.89

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Solution

The fourth proportional to 19,984.01, 27,578.85 and 11,488.89 is: 15,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.01 : 27,578.85 = 11,488.89 : x
  2. Step 2: Convert to fraction form
    19,984.01/27,578.85 = 11,488.89/x
  3. Step 3: Cross multiply
    19,984.01x = 27,578.85 × 11,488.89
  4. Step 4: Simplify right side
    19,984.01x = 316,850,373.98
  5. Step 5: Solve for x
    x = 316,850,373.98/19,984.01
  6. Step 6: Final answer
    x = 15,855.19

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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.