Home / 28,879.92-43,294.56-13,879.53

Finding the Fourth Proportional to 28,879.92, 43,294.56 and 13,879.53

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Solution

The fourth proportional to 28,879.92, 43,294.56 and 13,879.53 is: 20,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.92 : 43,294.56 = 13,879.53 : x
  2. Step 2: Convert to fraction form
    28,879.92/43,294.56 = 13,879.53/x
  3. Step 3: Cross multiply
    28,879.92x = 43,294.56 × 13,879.53
  4. Step 4: Simplify right side
    28,879.92x = 600,908,144.36
  5. Step 5: Solve for x
    x = 600,908,144.36/28,879.92
  6. Step 6: Final answer
    x = 20,807.13

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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.