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Finding the Fourth Proportional to 21,265, 29,353.62 and 15,975.10

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Solution

The fourth proportional to 21,265, 29,353.62 and 15,975.10 is: 22,051.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265 : 29,353.62 = 15,975.10 : x
  2. Step 2: Convert to fraction form
    21,265/29,353.62 = 15,975.10/x
  3. Step 3: Cross multiply
    21,265x = 29,353.62 × 15,975.10
  4. Step 4: Simplify right side
    21,265x = 468,927,014.86
  5. Step 5: Solve for x
    x = 468,927,014.86/21,265
  6. Step 6: Final answer
    x = 22,051.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.