Home / 31,120.02-46,679.83-18,643.59

Finding the Fourth Proportional to 31,120.02, 46,679.83 and 18,643.59

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Solution

The fourth proportional to 31,120.02, 46,679.83 and 18,643.59 is: 27,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.02 : 46,679.83 = 18,643.59 : x
  2. Step 2: Convert to fraction form
    31,120.02/46,679.83 = 18,643.59/x
  3. Step 3: Cross multiply
    31,120.02x = 46,679.83 × 18,643.59
  4. Step 4: Simplify right side
    31,120.02x = 870,279,565.18
  5. Step 5: Solve for x
    x = 870,279,565.18/31,120.02
  6. Step 6: Final answer
    x = 27,965.26

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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.