Home / 27,938.40-41,821.20-16,216.80

Finding the Fourth Proportional to 27,938.40, 41,821.20 and 16,216.80

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Solution

The fourth proportional to 27,938.40, 41,821.20 and 16,216.80 is: 24,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.40 : 41,821.20 = 16,216.80 : x
  2. Step 2: Convert to fraction form
    27,938.40/41,821.20 = 16,216.80/x
  3. Step 3: Cross multiply
    27,938.40x = 41,821.20 × 16,216.80
  4. Step 4: Simplify right side
    27,938.40x = 678,206,036.16
  5. Step 5: Solve for x
    x = 678,206,036.16/27,938.40
  6. Step 6: Final answer
    x = 24,275.05

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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.