Home / 19,590.88-29,328-18,891.04

Finding the Fourth Proportional to 19,590.88, 29,328 and 18,891.04

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Solution

The fourth proportional to 19,590.88, 29,328 and 18,891.04 is: 28,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.88 : 29,328 = 18,891.04 : x
  2. Step 2: Convert to fraction form
    19,590.88/29,328 = 18,891.04/x
  3. Step 3: Cross multiply
    19,590.88x = 29,328 × 18,891.04
  4. Step 4: Simplify right side
    19,590.88x = 554,036,421.12
  5. Step 5: Solve for x
    x = 554,036,421.12/19,590.88
  6. Step 6: Final answer
    x = 28,280.32

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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.