Home / 19,589.72-29,388.29-6,445.85

Finding the Fourth Proportional to 19,589.72, 29,388.29 and 6,445.85

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Solution

The fourth proportional to 19,589.72, 29,388.29 and 6,445.85 is: 9,669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.72 : 29,388.29 = 6,445.85 : x
  2. Step 2: Convert to fraction form
    19,589.72/29,388.29 = 6,445.85/x
  3. Step 3: Cross multiply
    19,589.72x = 29,388.29 × 6,445.85
  4. Step 4: Simplify right side
    19,589.72x = 189,432,329.93
  5. Step 5: Solve for x
    x = 189,432,329.93/19,589.72
  6. Step 6: Final answer
    x = 9,669.99

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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.