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Finding the Fourth Proportional to 35,830.60, 49,447.90 and 19,915.31

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Solution

The fourth proportional to 35,830.60, 49,447.90 and 19,915.31 is: 27,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,830.60 : 49,447.90 = 19,915.31 : x
  2. Step 2: Convert to fraction form
    35,830.60/49,447.90 = 19,915.31/x
  3. Step 3: Cross multiply
    35,830.60x = 49,447.90 × 19,915.31
  4. Step 4: Simplify right side
    35,830.60x = 984,770,405.86
  5. Step 5: Solve for x
    x = 984,770,405.86/35,830.60
  6. Step 6: Final answer
    x = 27,484.06

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1.5x scale

Why These Related Problems?

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