Home / 31,287.29-46,958.27-18,121.55

Finding the Fourth Proportional to 31,287.29, 46,958.27 and 18,121.55

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Solution

The fourth proportional to 31,287.29, 46,958.27 and 18,121.55 is: 27,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.29 : 46,958.27 = 18,121.55 : x
  2. Step 2: Convert to fraction form
    31,287.29/46,958.27 = 18,121.55/x
  3. Step 3: Cross multiply
    31,287.29x = 46,958.27 × 18,121.55
  4. Step 4: Simplify right side
    31,287.29x = 850,956,312.32
  5. Step 5: Solve for x
    x = 850,956,312.32/31,287.29
  6. Step 6: Final answer
    x = 27,198.15

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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.