Home / 30,257.97-45,339.53-19,141.17

Finding the Fourth Proportional to 30,257.97, 45,339.53 and 19,141.17

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Solution

The fourth proportional to 30,257.97, 45,339.53 and 19,141.17 is: 28,681.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.97 : 45,339.53 = 19,141.17 : x
  2. Step 2: Convert to fraction form
    30,257.97/45,339.53 = 19,141.17/x
  3. Step 3: Cross multiply
    30,257.97x = 45,339.53 × 19,141.17
  4. Step 4: Simplify right side
    30,257.97x = 867,851,385.72
  5. Step 5: Solve for x
    x = 867,851,385.72/30,257.97
  6. Step 6: Final answer
    x = 28,681.75

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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.