Home / 28,774.58-43,114.34-13,157.78

Finding the Fourth Proportional to 28,774.58, 43,114.34 and 13,157.78

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Solution

The fourth proportional to 28,774.58, 43,114.34 and 13,157.78 is: 19,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.58 : 43,114.34 = 13,157.78 : x
  2. Step 2: Convert to fraction form
    28,774.58/43,114.34 = 13,157.78/x
  3. Step 3: Cross multiply
    28,774.58x = 43,114.34 × 13,157.78
  4. Step 4: Simplify right side
    28,774.58x = 567,288,817.89
  5. Step 5: Solve for x
    x = 567,288,817.89/28,774.58
  6. Step 6: Final answer
    x = 19,714.93

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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.