Home / 20,012.32-30,012.54-5,973.40

Finding the Fourth Proportional to 20,012.32, 30,012.54 and 5,973.40

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Solution

The fourth proportional to 20,012.32, 30,012.54 and 5,973.40 is: 8,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.32 : 30,012.54 = 5,973.40 : x
  2. Step 2: Convert to fraction form
    20,012.32/30,012.54 = 5,973.40/x
  3. Step 3: Cross multiply
    20,012.32x = 30,012.54 × 5,973.40
  4. Step 4: Simplify right side
    20,012.32x = 179,276,906.44
  5. Step 5: Solve for x
    x = 179,276,906.44/20,012.32
  6. Step 6: Final answer
    x = 8,958.33

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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.