Home / 20,586.57-30,879.63-5,004.21

Finding the Fourth Proportional to 20,586.57, 30,879.63 and 5,004.21

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Solution

The fourth proportional to 20,586.57, 30,879.63 and 5,004.21 is: 7,506.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.57 : 30,879.63 = 5,004.21 : x
  2. Step 2: Convert to fraction form
    20,586.57/30,879.63 = 5,004.21/x
  3. Step 3: Cross multiply
    20,586.57x = 30,879.63 × 5,004.21
  4. Step 4: Simplify right side
    20,586.57x = 154,528,153.24
  5. Step 5: Solve for x
    x = 154,528,153.24/20,586.57
  6. Step 6: Final answer
    x = 7,506.26

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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.