Home / 27,620.19-41,432.31-11,809.80

Finding the Fourth Proportional to 27,620.19, 41,432.31 and 11,809.80

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Solution

The fourth proportional to 27,620.19, 41,432.31 and 11,809.80 is: 17,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.19 : 41,432.31 = 11,809.80 : x
  2. Step 2: Convert to fraction form
    27,620.19/41,432.31 = 11,809.80/x
  3. Step 3: Cross multiply
    27,620.19x = 41,432.31 × 11,809.80
  4. Step 4: Simplify right side
    27,620.19x = 489,307,294.64
  5. Step 5: Solve for x
    x = 489,307,294.64/27,620.19
  6. Step 6: Final answer
    x = 17,715.57

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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.