Home / 20,018.68-30,012.04-10,016.80

Finding the Fourth Proportional to 20,018.68, 30,012.04 and 10,016.80

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Solution

The fourth proportional to 20,018.68, 30,012.04 and 10,016.80 is: 15,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.68 : 30,012.04 = 10,016.80 : x
  2. Step 2: Convert to fraction form
    20,018.68/30,012.04 = 10,016.80/x
  3. Step 3: Cross multiply
    20,018.68x = 30,012.04 × 10,016.80
  4. Step 4: Simplify right side
    20,018.68x = 300,624,602.27
  5. Step 5: Solve for x
    x = 300,624,602.27/20,018.68
  6. Step 6: Final answer
    x = 15,017.20

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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.