Home / 36,639.48-50,554.08-20,720.46

Finding the Fourth Proportional to 36,639.48, 50,554.08 and 20,720.46

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Solution

The fourth proportional to 36,639.48, 50,554.08 and 20,720.46 is: 28,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,639.48 : 50,554.08 = 20,720.46 : x
  2. Step 2: Convert to fraction form
    36,639.48/50,554.08 = 20,720.46/x
  3. Step 3: Cross multiply
    36,639.48x = 50,554.08 × 20,720.46
  4. Step 4: Simplify right side
    36,639.48x = 1,047,503,792.48
  5. Step 5: Solve for x
    x = 1,047,503,792.48/36,639.48
  6. Step 6: Final answer
    x = 28,589.48

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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.