Home / 31,142.07-46,715.54-10,074.38

Finding the Fourth Proportional to 31,142.07, 46,715.54 and 10,074.38

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Solution

The fourth proportional to 31,142.07, 46,715.54 and 10,074.38 is: 15,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,142.07 : 46,715.54 = 10,074.38 : x
  2. Step 2: Convert to fraction form
    31,142.07/46,715.54 = 10,074.38/x
  3. Step 3: Cross multiply
    31,142.07x = 46,715.54 × 10,074.38
  4. Step 4: Simplify right side
    31,142.07x = 470,629,817.92
  5. Step 5: Solve for x
    x = 470,629,817.92/31,142.07
  6. Step 6: Final answer
    x = 15,112.35

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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.