Home / 19,967.48-29,955.35-8,121.26

Finding the Fourth Proportional to 19,967.48, 29,955.35 and 8,121.26

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Solution

The fourth proportional to 19,967.48, 29,955.35 and 8,121.26 is: 12,183.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.48 : 29,955.35 = 8,121.26 : x
  2. Step 2: Convert to fraction form
    19,967.48/29,955.35 = 8,121.26/x
  3. Step 3: Cross multiply
    19,967.48x = 29,955.35 × 8,121.26
  4. Step 4: Simplify right side
    19,967.48x = 243,275,185.74
  5. Step 5: Solve for x
    x = 243,275,185.74/19,967.48
  6. Step 6: Final answer
    x = 12,183.57

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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.