Home / 28,879.96-43,321.47-9,160.06

Finding the Fourth Proportional to 28,879.96, 43,321.47 and 9,160.06

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Solution

The fourth proportional to 28,879.96, 43,321.47 and 9,160.06 is: 13,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.96 : 43,321.47 = 9,160.06 : x
  2. Step 2: Convert to fraction form
    28,879.96/43,321.47 = 9,160.06/x
  3. Step 3: Cross multiply
    28,879.96x = 43,321.47 × 9,160.06
  4. Step 4: Simplify right side
    28,879.96x = 396,827,264.49
  5. Step 5: Solve for x
    x = 396,827,264.49/28,879.96
  6. Step 6: Final answer
    x = 13,740.58

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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.