Home / 20,544.40-30,784.20-17,239.60

Finding the Fourth Proportional to 20,544.40, 30,784.20 and 17,239.60

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Solution

The fourth proportional to 20,544.40, 30,784.20 and 17,239.60 is: 25,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.40 : 30,784.20 = 17,239.60 : x
  2. Step 2: Convert to fraction form
    20,544.40/30,784.20 = 17,239.60/x
  3. Step 3: Cross multiply
    20,544.40x = 30,784.20 × 17,239.60
  4. Step 4: Simplify right side
    20,544.40x = 530,707,294.32
  5. Step 5: Solve for x
    x = 530,707,294.32/20,544.40
  6. Step 6: Final answer
    x = 25,832.21

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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.