Home / 19,540.48-29,316.99-6,389.86

Finding the Fourth Proportional to 19,540.48, 29,316.99 and 6,389.86

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Solution

The fourth proportional to 19,540.48, 29,316.99 and 6,389.86 is: 9,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.48 : 29,316.99 = 6,389.86 : x
  2. Step 2: Convert to fraction form
    19,540.48/29,316.99 = 6,389.86/x
  3. Step 3: Cross multiply
    19,540.48x = 29,316.99 × 6,389.86
  4. Step 4: Simplify right side
    19,540.48x = 187,331,315.14
  5. Step 5: Solve for x
    x = 187,331,315.14/19,540.48
  6. Step 6: Final answer
    x = 9,586.84

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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.