Home / 43,577.52-65,346.72-12,405.36

Finding the Fourth Proportional to 43,577.52, 65,346.72 and 12,405.36

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Solution

The fourth proportional to 43,577.52, 65,346.72 and 12,405.36 is: 18,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,577.52 : 65,346.72 = 12,405.36 : x
  2. Step 2: Convert to fraction form
    43,577.52/65,346.72 = 12,405.36/x
  3. Step 3: Cross multiply
    43,577.52x = 65,346.72 × 12,405.36
  4. Step 4: Simplify right side
    43,577.52x = 810,649,586.42
  5. Step 5: Solve for x
    x = 810,649,586.42/43,577.52
  6. Step 6: Final answer
    x = 18,602.47

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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.