Home / 26,728.48-40,091.90-12,698.60

Finding the Fourth Proportional to 26,728.48, 40,091.90 and 12,698.60

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Solution

The fourth proportional to 26,728.48, 40,091.90 and 12,698.60 is: 19,047.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.48 : 40,091.90 = 12,698.60 : x
  2. Step 2: Convert to fraction form
    26,728.48/40,091.90 = 12,698.60/x
  3. Step 3: Cross multiply
    26,728.48x = 40,091.90 × 12,698.60
  4. Step 4: Simplify right side
    26,728.48x = 509,111,001.34
  5. Step 5: Solve for x
    x = 509,111,001.34/26,728.48
  6. Step 6: Final answer
    x = 19,047.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.