Home / 43,830.18-65,744.87-18,887.85

Finding the Fourth Proportional to 43,830.18, 65,744.87 and 18,887.85

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Solution

The fourth proportional to 43,830.18, 65,744.87 and 18,887.85 is: 28,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,830.18 : 65,744.87 = 18,887.85 : x
  2. Step 2: Convert to fraction form
    43,830.18/65,744.87 = 18,887.85/x
  3. Step 3: Cross multiply
    43,830.18x = 65,744.87 × 18,887.85
  4. Step 4: Simplify right side
    43,830.18x = 1,241,779,148.39
  5. Step 5: Solve for x
    x = 1,241,779,148.39/43,830.18
  6. Step 6: Final answer
    x = 28,331.60

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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.