Home / 19,240.20-28,811.70-18,365.40

Finding the Fourth Proportional to 19,240.20, 28,811.70 and 18,365.40

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Solution

The fourth proportional to 19,240.20, 28,811.70 and 18,365.40 is: 27,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.20 : 28,811.70 = 18,365.40 : x
  2. Step 2: Convert to fraction form
    19,240.20/28,811.70 = 18,365.40/x
  3. Step 3: Cross multiply
    19,240.20x = 28,811.70 × 18,365.40
  4. Step 4: Simplify right side
    19,240.20x = 529,138,395.18
  5. Step 5: Solve for x
    x = 529,138,395.18/19,240.20
  6. Step 6: Final answer
    x = 27,501.71

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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.