Home / 43,749.72-65,595.42-21,254.40

Finding the Fourth Proportional to 43,749.72, 65,595.42 and 21,254.40

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Solution

The fourth proportional to 43,749.72, 65,595.42 and 21,254.40 is: 31,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,749.72 : 65,595.42 = 21,254.40 : x
  2. Step 2: Convert to fraction form
    43,749.72/65,595.42 = 21,254.40/x
  3. Step 3: Cross multiply
    43,749.72x = 65,595.42 × 21,254.40
  4. Step 4: Simplify right side
    43,749.72x = 1,394,191,294.85
  5. Step 5: Solve for x
    x = 1,394,191,294.85/43,749.72
  6. Step 6: Final answer
    x = 31,867.43

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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.