Home / 20,865.26-31,302.75-6,075.74

Finding the Fourth Proportional to 20,865.26, 31,302.75 and 6,075.74

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Solution

The fourth proportional to 20,865.26, 31,302.75 and 6,075.74 is: 9,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865.26 : 31,302.75 = 6,075.74 : x
  2. Step 2: Convert to fraction form
    20,865.26/31,302.75 = 6,075.74/x
  3. Step 3: Cross multiply
    20,865.26x = 31,302.75 × 6,075.74
  4. Step 4: Simplify right side
    20,865.26x = 190,187,370.29
  5. Step 5: Solve for x
    x = 190,187,370.29/20,865.26
  6. Step 6: Final answer
    x = 9,115.03

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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.