Home / 35,523.24-49,023.70-20,420.80

Finding the Fourth Proportional to 35,523.24, 49,023.70 and 20,420.80

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Solution

The fourth proportional to 35,523.24, 49,023.70 and 20,420.80 is: 28,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,523.24 : 49,023.70 = 20,420.80 : x
  2. Step 2: Convert to fraction form
    35,523.24/49,023.70 = 20,420.80/x
  3. Step 3: Cross multiply
    35,523.24x = 49,023.70 × 20,420.80
  4. Step 4: Simplify right side
    35,523.24x = 1,001,103,172.96
  5. Step 5: Solve for x
    x = 1,001,103,172.96/35,523.24
  6. Step 6: Final answer
    x = 28,181.64

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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.