Home / 26,401.20-36,430.20-15,786.96

Finding the Fourth Proportional to 26,401.20, 36,430.20 and 15,786.96

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Solution

The fourth proportional to 26,401.20, 36,430.20 and 15,786.96 is: 21,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,401.20 : 36,430.20 = 15,786.96 : x
  2. Step 2: Convert to fraction form
    26,401.20/36,430.20 = 15,786.96/x
  3. Step 3: Cross multiply
    26,401.20x = 36,430.20 × 15,786.96
  4. Step 4: Simplify right side
    26,401.20x = 575,122,110.19
  5. Step 5: Solve for x
    x = 575,122,110.19/26,401.20
  6. Step 6: Final answer
    x = 21,783.94

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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.