Home / 28,768.34-43,157.43-13,187.30

Finding the Fourth Proportional to 28,768.34, 43,157.43 and 13,187.30

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Solution

The fourth proportional to 28,768.34, 43,157.43 and 13,187.30 is: 19,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.34 : 43,157.43 = 13,187.30 : x
  2. Step 2: Convert to fraction form
    28,768.34/43,157.43 = 13,187.30/x
  3. Step 3: Cross multiply
    28,768.34x = 43,157.43 × 13,187.30
  4. Step 4: Simplify right side
    28,768.34x = 569,129,976.64
  5. Step 5: Solve for x
    x = 569,129,976.64/28,768.34
  6. Step 6: Final answer
    x = 19,783.21

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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.