Home / 43,579.90-65,362-11,559.20

Finding the Fourth Proportional to 43,579.90, 65,362 and 11,559.20

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Solution

The fourth proportional to 43,579.90, 65,362 and 11,559.20 is: 17,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,579.90 : 65,362 = 11,559.20 : x
  2. Step 2: Convert to fraction form
    43,579.90/65,362 = 11,559.20/x
  3. Step 3: Cross multiply
    43,579.90x = 65,362 × 11,559.20
  4. Step 4: Simplify right side
    43,579.90x = 755,532,430.40
  5. Step 5: Solve for x
    x = 755,532,430.40/43,579.90
  6. Step 6: Final answer
    x = 17,336.72

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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.