Home / 30,476.28-45,791.10-19,387.92

Finding the Fourth Proportional to 30,476.28, 45,791.10 and 19,387.92

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Solution

The fourth proportional to 30,476.28, 45,791.10 and 19,387.92 is: 29,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.28 : 45,791.10 = 19,387.92 : x
  2. Step 2: Convert to fraction form
    30,476.28/45,791.10 = 19,387.92/x
  3. Step 3: Cross multiply
    30,476.28x = 45,791.10 × 19,387.92
  4. Step 4: Simplify right side
    30,476.28x = 887,794,183.51
  5. Step 5: Solve for x
    x = 887,794,183.51/30,476.28
  6. Step 6: Final answer
    x = 29,130.66

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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.