Home / 19,141.38-26,400.39-16,990.15

Finding the Fourth Proportional to 19,141.38, 26,400.39 and 16,990.15

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Solution

The fourth proportional to 19,141.38, 26,400.39 and 16,990.15 is: 23,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.38 : 26,400.39 = 16,990.15 : x
  2. Step 2: Convert to fraction form
    19,141.38/26,400.39 = 16,990.15/x
  3. Step 3: Cross multiply
    19,141.38x = 26,400.39 × 16,990.15
  4. Step 4: Simplify right side
    19,141.38x = 448,546,501.21
  5. Step 5: Solve for x
    x = 448,546,501.21/19,141.38
  6. Step 6: Final answer
    x = 23,433.34

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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.