Home / 28,399.62-42,599.43-17,989.50

Finding the Fourth Proportional to 28,399.62, 42,599.43 and 17,989.50

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Solution

The fourth proportional to 28,399.62, 42,599.43 and 17,989.50 is: 26,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,399.62 : 42,599.43 = 17,989.50 : x
  2. Step 2: Convert to fraction form
    28,399.62/42,599.43 = 17,989.50/x
  3. Step 3: Cross multiply
    28,399.62x = 42,599.43 × 17,989.50
  4. Step 4: Simplify right side
    28,399.62x = 766,342,445.99
  5. Step 5: Solve for x
    x = 766,342,445.99/28,399.62
  6. Step 6: Final answer
    x = 26,984.25

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Similar ratio
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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.