Home / 19,678.61-29,521.56-8,000.03

Finding the Fourth Proportional to 19,678.61, 29,521.56 and 8,000.03

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Solution

The fourth proportional to 19,678.61, 29,521.56 and 8,000.03 is: 12,001.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.61 : 29,521.56 = 8,000.03 : x
  2. Step 2: Convert to fraction form
    19,678.61/29,521.56 = 8,000.03/x
  3. Step 3: Cross multiply
    19,678.61x = 29,521.56 × 8,000.03
  4. Step 4: Simplify right side
    19,678.61x = 236,173,365.65
  5. Step 5: Solve for x
    x = 236,173,365.65/19,678.61
  6. Step 6: Final answer
    x = 12,001.53

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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.