Home / 43,782.71-65,678.69-20,086.23

Finding the Fourth Proportional to 43,782.71, 65,678.69 and 20,086.23

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Solution

The fourth proportional to 43,782.71, 65,678.69 and 20,086.23 is: 30,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,782.71 : 65,678.69 = 20,086.23 : x
  2. Step 2: Convert to fraction form
    43,782.71/65,678.69 = 20,086.23/x
  3. Step 3: Cross multiply
    43,782.71x = 65,678.69 × 20,086.23
  4. Step 4: Simplify right side
    43,782.71x = 1,319,237,059.28
  5. Step 5: Solve for x
    x = 1,319,237,059.28/43,782.71
  6. Step 6: Final answer
    x = 30,131.46

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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.