Home / 19,823.20-29,661.63-11,930.56

Finding the Fourth Proportional to 19,823.20, 29,661.63 and 11,930.56

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Solution

The fourth proportional to 19,823.20, 29,661.63 and 11,930.56 is: 17,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.20 : 29,661.63 = 11,930.56 : x
  2. Step 2: Convert to fraction form
    19,823.20/29,661.63 = 11,930.56/x
  3. Step 3: Cross multiply
    19,823.20x = 29,661.63 × 11,930.56
  4. Step 4: Simplify right side
    19,823.20x = 353,879,856.41
  5. Step 5: Solve for x
    x = 353,879,856.41/19,823.20
  6. Step 6: Final answer
    x = 17,851.80

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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.