Home / 20,102.36-30,109.76-9,692.24

Finding the Fourth Proportional to 20,102.36, 30,109.76 and 9,692.24

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Solution

The fourth proportional to 20,102.36, 30,109.76 and 9,692.24 is: 14,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.36 : 30,109.76 = 9,692.24 : x
  2. Step 2: Convert to fraction form
    20,102.36/30,109.76 = 9,692.24/x
  3. Step 3: Cross multiply
    20,102.36x = 30,109.76 × 9,692.24
  4. Step 4: Simplify right side
    20,102.36x = 291,831,020.26
  5. Step 5: Solve for x
    x = 291,831,020.26/20,102.36
  6. Step 6: Final answer
    x = 14,517.25

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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.