Home / 43,428.15-65,156.06-19,408.74

Finding the Fourth Proportional to 43,428.15, 65,156.06 and 19,408.74

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Solution

The fourth proportional to 43,428.15, 65,156.06 and 19,408.74 is: 29,119.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,428.15 : 65,156.06 = 19,408.74 : x
  2. Step 2: Convert to fraction form
    43,428.15/65,156.06 = 19,408.74/x
  3. Step 3: Cross multiply
    43,428.15x = 65,156.06 × 19,408.74
  4. Step 4: Simplify right side
    43,428.15x = 1,264,597,027.96
  5. Step 5: Solve for x
    x = 1,264,597,027.96/43,428.15
  6. Step 6: Final answer
    x = 29,119.29

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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.