Home / 28,205.79-42,327.81-11,568.84

Finding the Fourth Proportional to 28,205.79, 42,327.81 and 11,568.84

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Solution

The fourth proportional to 28,205.79, 42,327.81 and 11,568.84 is: 17,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.79 : 42,327.81 = 11,568.84 : x
  2. Step 2: Convert to fraction form
    28,205.79/42,327.81 = 11,568.84/x
  3. Step 3: Cross multiply
    28,205.79x = 42,327.81 × 11,568.84
  4. Step 4: Simplify right side
    28,205.79x = 489,683,661.44
  5. Step 5: Solve for x
    x = 489,683,661.44/28,205.79
  6. Step 6: Final answer
    x = 17,361.10

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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.