Home / 28,731.42-43,076.34-19,348.20

Finding the Fourth Proportional to 28,731.42, 43,076.34 and 19,348.20

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Solution

The fourth proportional to 28,731.42, 43,076.34 and 19,348.20 is: 29,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.42 : 43,076.34 = 19,348.20 : x
  2. Step 2: Convert to fraction form
    28,731.42/43,076.34 = 19,348.20/x
  3. Step 3: Cross multiply
    28,731.42x = 43,076.34 × 19,348.20
  4. Step 4: Simplify right side
    28,731.42x = 833,449,641.59
  5. Step 5: Solve for x
    x = 833,449,641.59/28,731.42
  6. Step 6: Final answer
    x = 29,008.30

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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.