Home / 28,222.09-38,942.40-16,283.23

Finding the Fourth Proportional to 28,222.09, 38,942.40 and 16,283.23

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Solution

The fourth proportional to 28,222.09, 38,942.40 and 16,283.23 is: 22,468.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.09 : 38,942.40 = 16,283.23 : x
  2. Step 2: Convert to fraction form
    28,222.09/38,942.40 = 16,283.23/x
  3. Step 3: Cross multiply
    28,222.09x = 38,942.40 × 16,283.23
  4. Step 4: Simplify right side
    28,222.09x = 634,108,055.95
  5. Step 5: Solve for x
    x = 634,108,055.95/28,222.09
  6. Step 6: Final answer
    x = 22,468.50

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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.