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Finding the Fourth Proportional to 21,866.35, 32,804.40 and 7,074.94

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Solution

The fourth proportional to 21,866.35, 32,804.40 and 7,074.94 is: 10,613.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866.35 : 32,804.40 = 7,074.94 : x
  2. Step 2: Convert to fraction form
    21,866.35/32,804.40 = 7,074.94/x
  3. Step 3: Cross multiply
    21,866.35x = 32,804.40 × 7,074.94
  4. Step 4: Simplify right side
    21,866.35x = 232,089,161.74
  5. Step 5: Solve for x
    x = 232,089,161.74/21,866.35
  6. Step 6: Final answer
    x = 10,613.99

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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.