Home / 42,639.87-58,843.16-23,778.21

Finding the Fourth Proportional to 42,639.87, 58,843.16 and 23,778.21

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Solution

The fourth proportional to 42,639.87, 58,843.16 and 23,778.21 is: 32,814.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.87 : 58,843.16 = 23,778.21 : x
  2. Step 2: Convert to fraction form
    42,639.87/58,843.16 = 23,778.21/x
  3. Step 3: Cross multiply
    42,639.87x = 58,843.16 × 23,778.21
  4. Step 4: Simplify right side
    42,639.87x = 1,399,185,015.54
  5. Step 5: Solve for x
    x = 1,399,185,015.54/42,639.87
  6. Step 6: Final answer
    x = 32,814.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.