Home / 19,586.31-29,433.68-19,111.54

Finding the Fourth Proportional to 19,586.31, 29,433.68 and 19,111.54

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Solution

The fourth proportional to 19,586.31, 29,433.68 and 19,111.54 is: 28,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.31 : 29,433.68 = 19,111.54 : x
  2. Step 2: Convert to fraction form
    19,586.31/29,433.68 = 19,111.54/x
  3. Step 3: Cross multiply
    19,586.31x = 29,433.68 × 19,111.54
  4. Step 4: Simplify right side
    19,586.31x = 562,522,952.67
  5. Step 5: Solve for x
    x = 562,522,952.67/19,586.31
  6. Step 6: Final answer
    x = 28,720.21

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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.