Home / 33,170.68-45,776.50-18,830.28

Finding the Fourth Proportional to 33,170.68, 45,776.50 and 18,830.28

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Solution

The fourth proportional to 33,170.68, 45,776.50 and 18,830.28 is: 25,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,170.68 : 45,776.50 = 18,830.28 : x
  2. Step 2: Convert to fraction form
    33,170.68/45,776.50 = 18,830.28/x
  3. Step 3: Cross multiply
    33,170.68x = 45,776.50 × 18,830.28
  4. Step 4: Simplify right side
    33,170.68x = 861,984,312.42
  5. Step 5: Solve for x
    x = 861,984,312.42/33,170.68
  6. Step 6: Final answer
    x = 25,986.33

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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.