Home / 36,223.48-49,986.30-20,305

Finding the Fourth Proportional to 36,223.48, 49,986.30 and 20,305

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Solution

The fourth proportional to 36,223.48, 49,986.30 and 20,305 is: 28,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,223.48 : 49,986.30 = 20,305 : x
  2. Step 2: Convert to fraction form
    36,223.48/49,986.30 = 20,305/x
  3. Step 3: Cross multiply
    36,223.48x = 49,986.30 × 20,305
  4. Step 4: Simplify right side
    36,223.48x = 1,014,971,821.50
  5. Step 5: Solve for x
    x = 1,014,971,821.50/36,223.48
  6. Step 6: Final answer
    x = 28,019.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.