Home / 19,969.09-29,987.06-19,174.45

Finding the Fourth Proportional to 19,969.09, 29,987.06 and 19,174.45

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Solution

The fourth proportional to 19,969.09, 29,987.06 and 19,174.45 is: 28,793.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,969.09 : 29,987.06 = 19,174.45 : x
  2. Step 2: Convert to fraction form
    19,969.09/29,987.06 = 19,174.45/x
  3. Step 3: Cross multiply
    19,969.09x = 29,987.06 × 19,174.45
  4. Step 4: Simplify right side
    19,969.09x = 574,985,286.74
  5. Step 5: Solve for x
    x = 574,985,286.74/19,969.09
  6. Step 6: Final answer
    x = 28,793.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.