Home / 28,236.83-38,968.05-16,904.13

Finding the Fourth Proportional to 28,236.83, 38,968.05 and 16,904.13

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Solution

The fourth proportional to 28,236.83, 38,968.05 and 16,904.13 is: 23,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.83 : 38,968.05 = 16,904.13 : x
  2. Step 2: Convert to fraction form
    28,236.83/38,968.05 = 16,904.13/x
  3. Step 3: Cross multiply
    28,236.83x = 38,968.05 × 16,904.13
  4. Step 4: Simplify right side
    28,236.83x = 658,720,983.05
  5. Step 5: Solve for x
    x = 658,720,983.05/28,236.83
  6. Step 6: Final answer
    x = 23,328.44

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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.