Home / 46,021.72-63,514.78-28,128.64

Finding the Fourth Proportional to 46,021.72, 63,514.78 and 28,128.64

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Solution

The fourth proportional to 46,021.72, 63,514.78 and 28,128.64 is: 38,820.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,021.72 : 63,514.78 = 28,128.64 : x
  2. Step 2: Convert to fraction form
    46,021.72/63,514.78 = 28,128.64/x
  3. Step 3: Cross multiply
    46,021.72x = 63,514.78 × 28,128.64
  4. Step 4: Simplify right side
    46,021.72x = 1,786,584,608.14
  5. Step 5: Solve for x
    x = 1,786,584,608.14/46,021.72
  6. Step 6: Final answer
    x = 38,820.47

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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.