Home / 20,237.22-30,369.48-7,089.70

Finding the Fourth Proportional to 20,237.22, 30,369.48 and 7,089.70

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Solution

The fourth proportional to 20,237.22, 30,369.48 and 7,089.70 is: 10,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.22 : 30,369.48 = 7,089.70 : x
  2. Step 2: Convert to fraction form
    20,237.22/30,369.48 = 7,089.70/x
  3. Step 3: Cross multiply
    20,237.22x = 30,369.48 × 7,089.70
  4. Step 4: Simplify right side
    20,237.22x = 215,310,502.36
  5. Step 5: Solve for x
    x = 215,310,502.36/20,237.22
  6. Step 6: Final answer
    x = 10,639.33

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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.