Home / 33,130.82-45,721.74-18,986.40

Finding the Fourth Proportional to 33,130.82, 45,721.74 and 18,986.40

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Solution

The fourth proportional to 33,130.82, 45,721.74 and 18,986.40 is: 26,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,130.82 : 45,721.74 = 18,986.40 : x
  2. Step 2: Convert to fraction form
    33,130.82/45,721.74 = 18,986.40/x
  3. Step 3: Cross multiply
    33,130.82x = 45,721.74 × 18,986.40
  4. Step 4: Simplify right side
    33,130.82x = 868,091,244.34
  5. Step 5: Solve for x
    x = 868,091,244.34/33,130.82
  6. Step 6: Final answer
    x = 26,201.93

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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.