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Finding the Fourth Proportional to 25,432, 38,143.32 and 10,636.96

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Solution

The fourth proportional to 25,432, 38,143.32 and 10,636.96 is: 15,953.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,432 : 38,143.32 = 10,636.96 : x
  2. Step 2: Convert to fraction form
    25,432/38,143.32 = 10,636.96/x
  3. Step 3: Cross multiply
    25,432x = 38,143.32 × 10,636.96
  4. Step 4: Simplify right side
    25,432x = 405,728,969.11
  5. Step 5: Solve for x
    x = 405,728,969.11/25,432
  6. Step 6: Final answer
    x = 15,953.48

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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.