Home / 27,089.60-40,555.20-19,313.60

Finding the Fourth Proportional to 27,089.60, 40,555.20 and 19,313.60

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Solution

The fourth proportional to 27,089.60, 40,555.20 and 19,313.60 is: 28,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,089.60 : 40,555.20 = 19,313.60 : x
  2. Step 2: Convert to fraction form
    27,089.60/40,555.20 = 19,313.60/x
  3. Step 3: Cross multiply
    27,089.60x = 40,555.20 × 19,313.60
  4. Step 4: Simplify right side
    27,089.60x = 783,266,910.72
  5. Step 5: Solve for x
    x = 783,266,910.72/27,089.60
  6. Step 6: Final answer
    x = 28,913.93

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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.