Home / 20,383.12-30,574.78-5,592.21

Finding the Fourth Proportional to 20,383.12, 30,574.78 and 5,592.21

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Solution

The fourth proportional to 20,383.12, 30,574.78 and 5,592.21 is: 8,388.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.12 : 30,574.78 = 5,592.21 : x
  2. Step 2: Convert to fraction form
    20,383.12/30,574.78 = 5,592.21/x
  3. Step 3: Cross multiply
    20,383.12x = 30,574.78 × 5,592.21
  4. Step 4: Simplify right side
    20,383.12x = 170,980,409.63
  5. Step 5: Solve for x
    x = 170,980,409.63/20,383.12
  6. Step 6: Final answer
    x = 8,388.33

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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.