Home / 19,401.50-26,772.81-11,441.90

Finding the Fourth Proportional to 19,401.50, 26,772.81 and 11,441.90

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Solution

The fourth proportional to 19,401.50, 26,772.81 and 11,441.90 is: 15,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.50 : 26,772.81 = 11,441.90 : x
  2. Step 2: Convert to fraction form
    19,401.50/26,772.81 = 11,441.90/x
  3. Step 3: Cross multiply
    19,401.50x = 26,772.81 × 11,441.90
  4. Step 4: Simplify right side
    19,401.50x = 306,331,814.74
  5. Step 5: Solve for x
    x = 306,331,814.74/19,401.50
  6. Step 6: Final answer
    x = 15,789.08

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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.