Home / 28,021.82-38,632.86-23,223.78

Finding the Fourth Proportional to 28,021.82, 38,632.86 and 23,223.78

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Solution

The fourth proportional to 28,021.82, 38,632.86 and 23,223.78 is: 32,017.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.82 : 38,632.86 = 23,223.78 : x
  2. Step 2: Convert to fraction form
    28,021.82/38,632.86 = 23,223.78/x
  3. Step 3: Cross multiply
    28,021.82x = 38,632.86 × 23,223.78
  4. Step 4: Simplify right side
    28,021.82x = 897,201,041.41
  5. Step 5: Solve for x
    x = 897,201,041.41/28,021.82
  6. Step 6: Final answer
    x = 32,017.95

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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.