Home / 20,378.94-30,566.36-5,589.34

Finding the Fourth Proportional to 20,378.94, 30,566.36 and 5,589.34

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Solution

The fourth proportional to 20,378.94, 30,566.36 and 5,589.34 is: 8,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.94 : 30,566.36 = 5,589.34 : x
  2. Step 2: Convert to fraction form
    20,378.94/30,566.36 = 5,589.34/x
  3. Step 3: Cross multiply
    20,378.94x = 30,566.36 × 5,589.34
  4. Step 4: Simplify right side
    20,378.94x = 170,845,750.66
  5. Step 5: Solve for x
    x = 170,845,750.66/20,378.94
  6. Step 6: Final answer
    x = 8,383.45

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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.