Home / 19,649.67-29,445.66-12,231.51

Finding the Fourth Proportional to 19,649.67, 29,445.66 and 12,231.51

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Solution

The fourth proportional to 19,649.67, 29,445.66 and 12,231.51 is: 18,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.67 : 29,445.66 = 12,231.51 : x
  2. Step 2: Convert to fraction form
    19,649.67/29,445.66 = 12,231.51/x
  3. Step 3: Cross multiply
    19,649.67x = 29,445.66 × 12,231.51
  4. Step 4: Simplify right side
    19,649.67x = 360,164,884.75
  5. Step 5: Solve for x
    x = 360,164,884.75/19,649.67
  6. Step 6: Final answer
    x = 18,329.31

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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.