Home / 20,724.70-31,050.60-17,006.80

Finding the Fourth Proportional to 20,724.70, 31,050.60 and 17,006.80

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Solution

The fourth proportional to 20,724.70, 31,050.60 and 17,006.80 is: 25,480.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.70 : 31,050.60 = 17,006.80 : x
  2. Step 2: Convert to fraction form
    20,724.70/31,050.60 = 17,006.80/x
  3. Step 3: Cross multiply
    20,724.70x = 31,050.60 × 17,006.80
  4. Step 4: Simplify right side
    20,724.70x = 528,071,344.08
  5. Step 5: Solve for x
    x = 528,071,344.08/20,724.70
  6. Step 6: Final answer
    x = 25,480.29

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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.