Home / 19,531.69-29,239.93-12,112.27

Finding the Fourth Proportional to 19,531.69, 29,239.93 and 12,112.27

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Solution

The fourth proportional to 19,531.69, 29,239.93 and 12,112.27 is: 18,132.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.69 : 29,239.93 = 12,112.27 : x
  2. Step 2: Convert to fraction form
    19,531.69/29,239.93 = 12,112.27/x
  3. Step 3: Cross multiply
    19,531.69x = 29,239.93 × 12,112.27
  4. Step 4: Simplify right side
    19,531.69x = 354,161,926.94
  5. Step 5: Solve for x
    x = 354,161,926.94/19,531.69
  6. Step 6: Final answer
    x = 18,132.68

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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.