Home / 33,315.72-45,975.78-18,208.57

Finding the Fourth Proportional to 33,315.72, 45,975.78 and 18,208.57

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Solution

The fourth proportional to 33,315.72, 45,975.78 and 18,208.57 is: 25,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,315.72 : 45,975.78 = 18,208.57 : x
  2. Step 2: Convert to fraction form
    33,315.72/45,975.78 = 18,208.57/x
  3. Step 3: Cross multiply
    33,315.72x = 45,975.78 × 18,208.57
  4. Step 4: Simplify right side
    33,315.72x = 837,152,887.51
  5. Step 5: Solve for x
    x = 837,152,887.51/33,315.72
  6. Step 6: Final answer
    x = 25,127.86

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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.