Home / 19,511.51-29,283.68-18,281.33

Finding the Fourth Proportional to 19,511.51, 29,283.68 and 18,281.33

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Solution

The fourth proportional to 19,511.51, 29,283.68 and 18,281.33 is: 27,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.51 : 29,283.68 = 18,281.33 : x
  2. Step 2: Convert to fraction form
    19,511.51/29,283.68 = 18,281.33/x
  3. Step 3: Cross multiply
    19,511.51x = 29,283.68 × 18,281.33
  4. Step 4: Simplify right side
    19,511.51x = 535,344,379.87
  5. Step 5: Solve for x
    x = 535,344,379.87/19,511.51
  6. Step 6: Final answer
    x = 27,437.37

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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.