Home / 30,083.12-45,075.36-21,302.27

Finding the Fourth Proportional to 30,083.12, 45,075.36 and 21,302.27

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Solution

The fourth proportional to 30,083.12, 45,075.36 and 21,302.27 is: 31,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,083.12 : 45,075.36 = 21,302.27 : x
  2. Step 2: Convert to fraction form
    30,083.12/45,075.36 = 21,302.27/x
  3. Step 3: Cross multiply
    30,083.12x = 45,075.36 × 21,302.27
  4. Step 4: Simplify right side
    30,083.12x = 960,207,489.07
  5. Step 5: Solve for x
    x = 960,207,489.07/30,083.12
  6. Step 6: Final answer
    x = 31,918.48

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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.