Home / 28,290.21-42,435.04-17,199.96

Finding the Fourth Proportional to 28,290.21, 42,435.04 and 17,199.96

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Solution

The fourth proportional to 28,290.21, 42,435.04 and 17,199.96 is: 25,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.21 : 42,435.04 = 17,199.96 : x
  2. Step 2: Convert to fraction form
    28,290.21/42,435.04 = 17,199.96/x
  3. Step 3: Cross multiply
    28,290.21x = 42,435.04 × 17,199.96
  4. Step 4: Simplify right side
    28,290.21x = 729,880,809.97
  5. Step 5: Solve for x
    x = 729,880,809.97/28,290.21
  6. Step 6: Final answer
    x = 25,799.77

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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.