Home / 43,409.40-65,114.10-13,830.23

Finding the Fourth Proportional to 43,409.40, 65,114.10 and 13,830.23

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Solution

The fourth proportional to 43,409.40, 65,114.10 and 13,830.23 is: 20,745.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,409.40 : 65,114.10 = 13,830.23 : x
  2. Step 2: Convert to fraction form
    43,409.40/65,114.10 = 13,830.23/x
  3. Step 3: Cross multiply
    43,409.40x = 65,114.10 × 13,830.23
  4. Step 4: Simplify right side
    43,409.40x = 900,542,653.67
  5. Step 5: Solve for x
    x = 900,542,653.67/43,409.40
  6. Step 6: Final answer
    x = 20,745.34

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Double scale
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Similar ratio
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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.