Home / 19,590.66-29,379.75-6,440.01

Finding the Fourth Proportional to 19,590.66, 29,379.75 and 6,440.01

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Solution

The fourth proportional to 19,590.66, 29,379.75 and 6,440.01 is: 9,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.66 : 29,379.75 = 6,440.01 : x
  2. Step 2: Convert to fraction form
    19,590.66/29,379.75 = 6,440.01/x
  3. Step 3: Cross multiply
    19,590.66x = 29,379.75 × 6,440.01
  4. Step 4: Simplify right side
    19,590.66x = 189,205,883.80
  5. Step 5: Solve for x
    x = 189,205,883.80/19,590.66
  6. Step 6: Final answer
    x = 9,657.96

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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.