Home / 20,866.33-31,304.63-6,075.38

Finding the Fourth Proportional to 20,866.33, 31,304.63 and 6,075.38

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Solution

The fourth proportional to 20,866.33, 31,304.63 and 6,075.38 is: 9,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866.33 : 31,304.63 = 6,075.38 : x
  2. Step 2: Convert to fraction form
    20,866.33/31,304.63 = 6,075.38/x
  3. Step 3: Cross multiply
    20,866.33x = 31,304.63 × 6,075.38
  4. Step 4: Simplify right side
    20,866.33x = 190,187,570.89
  5. Step 5: Solve for x
    x = 190,187,570.89/20,866.33
  6. Step 6: Final answer
    x = 9,114.57

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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.