Home / 14,261.40-21,351.60-13,485.60

Finding the Fourth Proportional to 14,261.40, 21,351.60 and 13,485.60

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Solution

The fourth proportional to 14,261.40, 21,351.60 and 13,485.60 is: 20,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.40 : 21,351.60 = 13,485.60 : x
  2. Step 2: Convert to fraction form
    14,261.40/21,351.60 = 13,485.60/x
  3. Step 3: Cross multiply
    14,261.40x = 21,351.60 × 13,485.60
  4. Step 4: Simplify right side
    14,261.40x = 287,939,136.96
  5. Step 5: Solve for x
    x = 287,939,136.96/14,261.40
  6. Step 6: Final answer
    x = 20,190.10

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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.