Home / 33,430.69-46,155.36-21,514.78

Finding the Fourth Proportional to 33,430.69, 46,155.36 and 21,514.78

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Solution

The fourth proportional to 33,430.69, 46,155.36 and 21,514.78 is: 29,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,430.69 : 46,155.36 = 21,514.78 : x
  2. Step 2: Convert to fraction form
    33,430.69/46,155.36 = 21,514.78/x
  3. Step 3: Cross multiply
    33,430.69x = 46,155.36 × 21,514.78
  4. Step 4: Simplify right side
    33,430.69x = 993,022,416.22
  5. Step 5: Solve for x
    x = 993,022,416.22/33,430.69
  6. Step 6: Final answer
    x = 29,703.92

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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.