Home / 43,572.29-65,360.84-12,405.11

Finding the Fourth Proportional to 43,572.29, 65,360.84 and 12,405.11

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Solution

The fourth proportional to 43,572.29, 65,360.84 and 12,405.11 is: 18,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,572.29 : 65,360.84 = 12,405.11 : x
  2. Step 2: Convert to fraction form
    43,572.29/65,360.84 = 12,405.11/x
  3. Step 3: Cross multiply
    43,572.29x = 65,360.84 × 12,405.11
  4. Step 4: Simplify right side
    43,572.29x = 810,808,021.06
  5. Step 5: Solve for x
    x = 810,808,021.06/43,572.29
  6. Step 6: Final answer
    x = 18,608.34

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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.