Home / 30,051.45-41,505.05-20,474.73

Finding the Fourth Proportional to 30,051.45, 41,505.05 and 20,474.73

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Solution

The fourth proportional to 30,051.45, 41,505.05 and 20,474.73 is: 28,278.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,051.45 : 41,505.05 = 20,474.73 : x
  2. Step 2: Convert to fraction form
    30,051.45/41,505.05 = 20,474.73/x
  3. Step 3: Cross multiply
    30,051.45x = 41,505.05 × 20,474.73
  4. Step 4: Simplify right side
    30,051.45x = 849,804,590.01
  5. Step 5: Solve for x
    x = 849,804,590.01/30,051.45
  6. Step 6: Final answer
    x = 28,278.32

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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.