Home / 28,432.33-39,228.74-18,361.19

Finding the Fourth Proportional to 28,432.33, 39,228.74 and 18,361.19

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Solution

The fourth proportional to 28,432.33, 39,228.74 and 18,361.19 is: 25,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.33 : 39,228.74 = 18,361.19 : x
  2. Step 2: Convert to fraction form
    28,432.33/39,228.74 = 18,361.19/x
  3. Step 3: Cross multiply
    28,432.33x = 39,228.74 × 18,361.19
  4. Step 4: Simplify right side
    28,432.33x = 720,286,423.72
  5. Step 5: Solve for x
    x = 720,286,423.72/28,432.33
  6. Step 6: Final answer
    x = 25,333.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.