Home / 20,764.08-28,683.36-18,525.24

Finding the Fourth Proportional to 20,764.08, 28,683.36 and 18,525.24

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Solution

The fourth proportional to 20,764.08, 28,683.36 and 18,525.24 is: 25,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.08 : 28,683.36 = 18,525.24 : x
  2. Step 2: Convert to fraction form
    20,764.08/28,683.36 = 18,525.24/x
  3. Step 3: Cross multiply
    20,764.08x = 28,683.36 × 18,525.24
  4. Step 4: Simplify right side
    20,764.08x = 531,366,128.01
  5. Step 5: Solve for x
    x = 531,366,128.01/20,764.08
  6. Step 6: Final answer
    x = 25,590.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.