Home / 36,820.76-50,815.56-20,905.88

Finding the Fourth Proportional to 36,820.76, 50,815.56 and 20,905.88

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Solution

The fourth proportional to 36,820.76, 50,815.56 and 20,905.88 is: 28,851.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,820.76 : 50,815.56 = 20,905.88 : x
  2. Step 2: Convert to fraction form
    36,820.76/50,815.56 = 20,905.88/x
  3. Step 3: Cross multiply
    36,820.76x = 50,815.56 × 20,905.88
  4. Step 4: Simplify right side
    36,820.76x = 1,062,343,999.49
  5. Step 5: Solve for x
    x = 1,062,343,999.49/36,820.76
  6. Step 6: Final answer
    x = 28,851.77

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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.