Home / 20,236.91-30,368.84-7,089.26

Finding the Fourth Proportional to 20,236.91, 30,368.84 and 7,089.26

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Solution

The fourth proportional to 20,236.91, 30,368.84 and 7,089.26 is: 10,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.91 : 30,368.84 = 7,089.26 : x
  2. Step 2: Convert to fraction form
    20,236.91/30,368.84 = 7,089.26/x
  3. Step 3: Cross multiply
    20,236.91x = 30,368.84 × 7,089.26
  4. Step 4: Simplify right side
    20,236.91x = 215,292,415.37
  5. Step 5: Solve for x
    x = 215,292,415.37/20,236.91
  6. Step 6: Final answer
    x = 10,638.60

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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.