Home / 20,019.69-30,036.69-8,925.39

Finding the Fourth Proportional to 20,019.69, 30,036.69 and 8,925.39

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Solution

The fourth proportional to 20,019.69, 30,036.69 and 8,925.39 is: 13,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.69 : 30,036.69 = 8,925.39 : x
  2. Step 2: Convert to fraction form
    20,019.69/30,036.69 = 8,925.39/x
  3. Step 3: Cross multiply
    20,019.69x = 30,036.69 × 8,925.39
  4. Step 4: Simplify right side
    20,019.69x = 268,089,172.56
  5. Step 5: Solve for x
    x = 268,089,172.56/20,019.69
  6. Step 6: Final answer
    x = 13,391.27

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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.