Home / 28,914.13-39,912.51-18,845.02

Finding the Fourth Proportional to 28,914.13, 39,912.51 and 18,845.02

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Solution

The fourth proportional to 28,914.13, 39,912.51 and 18,845.02 is: 26,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.13 : 39,912.51 = 18,845.02 : x
  2. Step 2: Convert to fraction form
    28,914.13/39,912.51 = 18,845.02/x
  3. Step 3: Cross multiply
    28,914.13x = 39,912.51 × 18,845.02
  4. Step 4: Simplify right side
    28,914.13x = 752,152,049.20
  5. Step 5: Solve for x
    x = 752,152,049.20/28,914.13
  6. Step 6: Final answer
    x = 26,013.30

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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.