Home / 28,101.09-38,795.46-18,682.41

Finding the Fourth Proportional to 28,101.09, 38,795.46 and 18,682.41

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Solution

The fourth proportional to 28,101.09, 38,795.46 and 18,682.41 is: 25,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.09 : 38,795.46 = 18,682.41 : x
  2. Step 2: Convert to fraction form
    28,101.09/38,795.46 = 18,682.41/x
  3. Step 3: Cross multiply
    28,101.09x = 38,795.46 × 18,682.41
  4. Step 4: Simplify right side
    28,101.09x = 724,792,689.86
  5. Step 5: Solve for x
    x = 724,792,689.86/28,101.09
  6. Step 6: Final answer
    x = 25,792.33

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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.