Home / 20,112.28-30,172.67-6,073.36

Finding the Fourth Proportional to 20,112.28, 30,172.67 and 6,073.36

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Solution

The fourth proportional to 20,112.28, 30,172.67 and 6,073.36 is: 9,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.28 : 30,172.67 = 6,073.36 : x
  2. Step 2: Convert to fraction form
    20,112.28/30,172.67 = 6,073.36/x
  3. Step 3: Cross multiply
    20,112.28x = 30,172.67 × 6,073.36
  4. Step 4: Simplify right side
    20,112.28x = 183,249,487.07
  5. Step 5: Solve for x
    x = 183,249,487.07/20,112.28
  6. Step 6: Final answer
    x = 9,111.32

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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.