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Finding the Fourth Proportional to 21,668.58, 32,501.63 and 8,338.93

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Solution

The fourth proportional to 21,668.58, 32,501.63 and 8,338.93 is: 12,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.58 : 32,501.63 = 8,338.93 : x
  2. Step 2: Convert to fraction form
    21,668.58/32,501.63 = 8,338.93/x
  3. Step 3: Cross multiply
    21,668.58x = 32,501.63 × 8,338.93
  4. Step 4: Simplify right side
    21,668.58x = 271,028,757.05
  5. Step 5: Solve for x
    x = 271,028,757.05/21,668.58
  6. Step 6: Final answer
    x = 12,507.92

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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.