Home / 19,890.03-29,791.85-19,337.07

Finding the Fourth Proportional to 19,890.03, 29,791.85 and 19,337.07

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Solution

The fourth proportional to 19,890.03, 29,791.85 and 19,337.07 is: 28,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.03 : 29,791.85 = 19,337.07 : x
  2. Step 2: Convert to fraction form
    19,890.03/29,791.85 = 19,337.07/x
  3. Step 3: Cross multiply
    19,890.03x = 29,791.85 × 19,337.07
  4. Step 4: Simplify right side
    19,890.03x = 576,086,992.19
  5. Step 5: Solve for x
    x = 576,086,992.19/19,890.03
  6. Step 6: Final answer
    x = 28,963.61

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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.