Home / 28,492.02-39,321.48-18,914.99

Finding the Fourth Proportional to 28,492.02, 39,321.48 and 18,914.99

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Solution

The fourth proportional to 28,492.02, 39,321.48 and 18,914.99 is: 26,104.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.02 : 39,321.48 = 18,914.99 : x
  2. Step 2: Convert to fraction form
    28,492.02/39,321.48 = 18,914.99/x
  3. Step 3: Cross multiply
    28,492.02x = 39,321.48 × 18,914.99
  4. Step 4: Simplify right side
    28,492.02x = 743,765,204.38
  5. Step 5: Solve for x
    x = 743,765,204.38/28,492.02
  6. Step 6: Final answer
    x = 26,104.33

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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.