Home / 32,768.70-45,225.99-20,819.58

Finding the Fourth Proportional to 32,768.70, 45,225.99 and 20,819.58

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Solution

The fourth proportional to 32,768.70, 45,225.99 and 20,819.58 is: 28,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,768.70 : 45,225.99 = 20,819.58 : x
  2. Step 2: Convert to fraction form
    32,768.70/45,225.99 = 20,819.58/x
  3. Step 3: Cross multiply
    32,768.70x = 45,225.99 × 20,819.58
  4. Step 4: Simplify right side
    32,768.70x = 941,586,116.88
  5. Step 5: Solve for x
    x = 941,586,116.88/32,768.70
  6. Step 6: Final answer
    x = 28,734.31

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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.