Home / 28,483.86-39,291.30-17,145.48

Finding the Fourth Proportional to 28,483.86, 39,291.30 and 17,145.48

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Solution

The fourth proportional to 28,483.86, 39,291.30 and 17,145.48 is: 23,650.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.86 : 39,291.30 = 17,145.48 : x
  2. Step 2: Convert to fraction form
    28,483.86/39,291.30 = 17,145.48/x
  3. Step 3: Cross multiply
    28,483.86x = 39,291.30 × 17,145.48
  4. Step 4: Simplify right side
    28,483.86x = 673,668,198.32
  5. Step 5: Solve for x
    x = 673,668,198.32/28,483.86
  6. Step 6: Final answer
    x = 23,650.87

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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.