Home / 30,690.90-46,067.94-19,031.76

Finding the Fourth Proportional to 30,690.90, 46,067.94 and 19,031.76

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Solution

The fourth proportional to 30,690.90, 46,067.94 and 19,031.76 is: 28,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690.90 : 46,067.94 = 19,031.76 : x
  2. Step 2: Convert to fraction form
    30,690.90/46,067.94 = 19,031.76/x
  3. Step 3: Cross multiply
    30,690.90x = 46,067.94 × 19,031.76
  4. Step 4: Simplify right side
    30,690.90x = 876,753,977.77
  5. Step 5: Solve for x
    x = 876,753,977.77/30,690.90
  6. Step 6: Final answer
    x = 28,567.23

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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.