Home / 26,831.98-40,256.20-12,809.88

Finding the Fourth Proportional to 26,831.98, 40,256.20 and 12,809.88

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Solution

The fourth proportional to 26,831.98, 40,256.20 and 12,809.88 is: 19,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,831.98 : 40,256.20 = 12,809.88 : x
  2. Step 2: Convert to fraction form
    26,831.98/40,256.20 = 12,809.88/x
  3. Step 3: Cross multiply
    26,831.98x = 40,256.20 × 12,809.88
  4. Step 4: Simplify right side
    26,831.98x = 515,677,091.26
  5. Step 5: Solve for x
    x = 515,677,091.26/26,831.98
  6. Step 6: Final answer
    x = 19,218.75

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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.