Home / 43,670.09-65,535.43-19,980.55

Finding the Fourth Proportional to 43,670.09, 65,535.43 and 19,980.55

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Solution

The fourth proportional to 43,670.09, 65,535.43 and 19,980.55 is: 29,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,670.09 : 65,535.43 = 19,980.55 : x
  2. Step 2: Convert to fraction form
    43,670.09/65,535.43 = 19,980.55/x
  3. Step 3: Cross multiply
    43,670.09x = 65,535.43 × 19,980.55
  4. Step 4: Simplify right side
    43,670.09x = 1,309,433,821.00
  5. Step 5: Solve for x
    x = 1,309,433,821.00/43,670.09
  6. Step 6: Final answer
    x = 29,984.69

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1.5x scale

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.