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Finding the Fourth Proportional to 21,777.63, 32,681.00 and 7,926.63

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Solution

The fourth proportional to 21,777.63, 32,681.00 and 7,926.63 is: 11,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777.63 : 32,681.00 = 7,926.63 : x
  2. Step 2: Convert to fraction form
    21,777.63/32,681.00 = 7,926.63/x
  3. Step 3: Cross multiply
    21,777.63x = 32,681.00 × 7,926.63
  4. Step 4: Simplify right side
    21,777.63x = 259,050,092.29
  5. Step 5: Solve for x
    x = 259,050,092.29/21,777.63
  6. Step 6: Final answer
    x = 11,895.24

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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.