Home / 19,859.61-29,774.99-9,324.21

Finding the Fourth Proportional to 19,859.61, 29,774.99 and 9,324.21

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Solution

The fourth proportional to 19,859.61, 29,774.99 and 9,324.21 is: 13,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.61 : 29,774.99 = 9,324.21 : x
  2. Step 2: Convert to fraction form
    19,859.61/29,774.99 = 9,324.21/x
  3. Step 3: Cross multiply
    19,859.61x = 29,774.99 × 9,324.21
  4. Step 4: Simplify right side
    19,859.61x = 277,628,212.89
  5. Step 5: Solve for x
    x = 277,628,212.89/19,859.61
  6. Step 6: Final answer
    x = 13,979.54

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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.