Home / 28,705.37-43,058.07-15,640.79

Finding the Fourth Proportional to 28,705.37, 43,058.07 and 15,640.79

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Solution

The fourth proportional to 28,705.37, 43,058.07 and 15,640.79 is: 23,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.37 : 43,058.07 = 15,640.79 : x
  2. Step 2: Convert to fraction form
    28,705.37/43,058.07 = 15,640.79/x
  3. Step 3: Cross multiply
    28,705.37x = 43,058.07 × 15,640.79
  4. Step 4: Simplify right side
    28,705.37x = 673,462,015.38
  5. Step 5: Solve for x
    x = 673,462,015.38/28,705.37
  6. Step 6: Final answer
    x = 23,461.19

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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.