Home / 35,378.42-48,819.26-20,840.30

Finding the Fourth Proportional to 35,378.42, 48,819.26 and 20,840.30

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Solution

The fourth proportional to 35,378.42, 48,819.26 and 20,840.30 is: 28,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,378.42 : 48,819.26 = 20,840.30 : x
  2. Step 2: Convert to fraction form
    35,378.42/48,819.26 = 20,840.30/x
  3. Step 3: Cross multiply
    35,378.42x = 48,819.26 × 20,840.30
  4. Step 4: Simplify right side
    35,378.42x = 1,017,407,832.18
  5. Step 5: Solve for x
    x = 1,017,407,832.18/35,378.42
  6. Step 6: Final answer
    x = 28,757.86

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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.