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Finding the Fourth Proportional to 30,366.87, 45,535.71 and 17,215.71

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Solution

The fourth proportional to 30,366.87, 45,535.71 and 17,215.71 is: 25,815.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,366.87 : 45,535.71 = 17,215.71 : x
  2. Step 2: Convert to fraction form
    30,366.87/45,535.71 = 17,215.71/x
  3. Step 3: Cross multiply
    30,366.87x = 45,535.71 × 17,215.71
  4. Step 4: Simplify right side
    30,366.87x = 783,929,578.00
  5. Step 5: Solve for x
    x = 783,929,578.00/30,366.87
  6. Step 6: Final answer
    x = 25,815.29

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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.