Home / 20,428.38-30,636.06-6,574.14

Finding the Fourth Proportional to 20,428.38, 30,636.06 and 6,574.14

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Solution

The fourth proportional to 20,428.38, 30,636.06 and 6,574.14 is: 9,859.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.38 : 30,636.06 = 6,574.14 : x
  2. Step 2: Convert to fraction form
    20,428.38/30,636.06 = 6,574.14/x
  3. Step 3: Cross multiply
    20,428.38x = 30,636.06 × 6,574.14
  4. Step 4: Simplify right side
    20,428.38x = 201,405,747.49
  5. Step 5: Solve for x
    x = 201,405,747.49/20,428.38
  6. Step 6: Final answer
    x = 9,859.11

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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.