Home / 21,273.36-31,907.56-5,692.20

Finding the Fourth Proportional to 21,273.36, 31,907.56 and 5,692.20

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Solution

The fourth proportional to 21,273.36, 31,907.56 and 5,692.20 is: 8,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.36 : 31,907.56 = 5,692.20 : x
  2. Step 2: Convert to fraction form
    21,273.36/31,907.56 = 5,692.20/x
  3. Step 3: Cross multiply
    21,273.36x = 31,907.56 × 5,692.20
  4. Step 4: Simplify right side
    21,273.36x = 181,624,213.03
  5. Step 5: Solve for x
    x = 181,624,213.03/21,273.36
  6. Step 6: Final answer
    x = 8,537.64

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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.