Home / 28,915.99-43,364.01-19,612.73

Finding the Fourth Proportional to 28,915.99, 43,364.01 and 19,612.73

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Solution

The fourth proportional to 28,915.99, 43,364.01 and 19,612.73 is: 29,412.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.99 : 43,364.01 = 19,612.73 : x
  2. Step 2: Convert to fraction form
    28,915.99/43,364.01 = 19,612.73/x
  3. Step 3: Cross multiply
    28,915.99x = 43,364.01 × 19,612.73
  4. Step 4: Simplify right side
    28,915.99x = 850,486,691.48
  5. Step 5: Solve for x
    x = 850,486,691.48/28,915.99
  6. Step 6: Final answer
    x = 29,412.33

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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.