Home / 36,915.56-50,938.88-20,780.90

Finding the Fourth Proportional to 36,915.56, 50,938.88 and 20,780.90

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Solution

The fourth proportional to 36,915.56, 50,938.88 and 20,780.90 is: 28,675.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,915.56 : 50,938.88 = 20,780.90 : x
  2. Step 2: Convert to fraction form
    36,915.56/50,938.88 = 20,780.90/x
  3. Step 3: Cross multiply
    36,915.56x = 50,938.88 × 20,780.90
  4. Step 4: Simplify right side
    36,915.56x = 1,058,555,771.39
  5. Step 5: Solve for x
    x = 1,058,555,771.39/36,915.56
  6. Step 6: Final answer
    x = 28,675.06

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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.