Home / 19,131.67-26,348.88-16,478.11

Finding the Fourth Proportional to 19,131.67, 26,348.88 and 16,478.11

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Solution

The fourth proportional to 19,131.67, 26,348.88 and 16,478.11 is: 22,694.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.67 : 26,348.88 = 16,478.11 : x
  2. Step 2: Convert to fraction form
    19,131.67/26,348.88 = 16,478.11/x
  3. Step 3: Cross multiply
    19,131.67x = 26,348.88 × 16,478.11
  4. Step 4: Simplify right side
    19,131.67x = 434,179,743.02
  5. Step 5: Solve for x
    x = 434,179,743.02/19,131.67
  6. Step 6: Final answer
    x = 22,694.29

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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.