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Finding the Fourth Proportional to 19,065.60, 26,265.60 and 18,345.60

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Solution

The fourth proportional to 19,065.60, 26,265.60 and 18,345.60 is: 25,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.60 : 26,265.60 = 18,345.60 : x
  2. Step 2: Convert to fraction form
    19,065.60/26,265.60 = 18,345.60/x
  3. Step 3: Cross multiply
    19,065.60x = 26,265.60 × 18,345.60
  4. Step 4: Simplify right side
    19,065.60x = 481,858,191.36
  5. Step 5: Solve for x
    x = 481,858,191.36/19,065.60
  6. Step 6: Final answer
    x = 25,273.70

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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.