Home / 31,121.21-46,671.01-19,256.84

Finding the Fourth Proportional to 31,121.21, 46,671.01 and 19,256.84

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Solution

The fourth proportional to 31,121.21, 46,671.01 and 19,256.84 is: 28,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.21 : 46,671.01 = 19,256.84 : x
  2. Step 2: Convert to fraction form
    31,121.21/46,671.01 = 19,256.84/x
  3. Step 3: Cross multiply
    31,121.21x = 46,671.01 × 19,256.84
  4. Step 4: Simplify right side
    31,121.21x = 898,736,119.89
  5. Step 5: Solve for x
    x = 898,736,119.89/31,121.21
  6. Step 6: Final answer
    x = 28,878.57

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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.