Home / 30,470.36-42,067.24-19,149.44

Finding the Fourth Proportional to 30,470.36, 42,067.24 and 19,149.44

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Solution

The fourth proportional to 30,470.36, 42,067.24 and 19,149.44 is: 26,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,470.36 : 42,067.24 = 19,149.44 : x
  2. Step 2: Convert to fraction form
    30,470.36/42,067.24 = 19,149.44/x
  3. Step 3: Cross multiply
    30,470.36x = 42,067.24 × 19,149.44
  4. Step 4: Simplify right side
    30,470.36x = 805,564,088.35
  5. Step 5: Solve for x
    x = 805,564,088.35/30,470.36
  6. Step 6: Final answer
    x = 26,437.63

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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.