Home / 42,949.14-64,370.84-20,471.64

Finding the Fourth Proportional to 42,949.14, 64,370.84 and 20,471.64

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Solution

The fourth proportional to 42,949.14, 64,370.84 and 20,471.64 is: 30,682.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,949.14 : 64,370.84 = 20,471.64 : x
  2. Step 2: Convert to fraction form
    42,949.14/64,370.84 = 20,471.64/x
  3. Step 3: Cross multiply
    42,949.14x = 64,370.84 × 20,471.64
  4. Step 4: Simplify right side
    42,949.14x = 1,317,776,662.98
  5. Step 5: Solve for x
    x = 1,317,776,662.98/42,949.14
  6. Step 6: Final answer
    x = 30,682.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.