Home / 28,236.92-38,962.86-18,166.28

Finding the Fourth Proportional to 28,236.92, 38,962.86 and 18,166.28

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Solution

The fourth proportional to 28,236.92, 38,962.86 and 18,166.28 is: 25,066.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.92 : 38,962.86 = 18,166.28 : x
  2. Step 2: Convert to fraction form
    28,236.92/38,962.86 = 18,166.28/x
  3. Step 3: Cross multiply
    28,236.92x = 38,962.86 × 18,166.28
  4. Step 4: Simplify right side
    28,236.92x = 707,810,224.36
  5. Step 5: Solve for x
    x = 707,810,224.36/28,236.92
  6. Step 6: Final answer
    x = 25,066.84

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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.