Home / 20,521.07-30,633.21-18,029.94

Finding the Fourth Proportional to 20,521.07, 30,633.21 and 18,029.94

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Solution

The fourth proportional to 20,521.07, 30,633.21 and 18,029.94 is: 26,914.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,521.07 : 30,633.21 = 18,029.94 : x
  2. Step 2: Convert to fraction form
    20,521.07/30,633.21 = 18,029.94/x
  3. Step 3: Cross multiply
    20,521.07x = 30,633.21 × 18,029.94
  4. Step 4: Simplify right side
    20,521.07x = 552,314,738.51
  5. Step 5: Solve for x
    x = 552,314,738.51/20,521.07
  6. Step 6: Final answer
    x = 26,914.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.