Home / 30,386.43-45,584.52-12,856.41

Finding the Fourth Proportional to 30,386.43, 45,584.52 and 12,856.41

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Solution

The fourth proportional to 30,386.43, 45,584.52 and 12,856.41 is: 19,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,386.43 : 45,584.52 = 12,856.41 : x
  2. Step 2: Convert to fraction form
    30,386.43/45,584.52 = 12,856.41/x
  3. Step 3: Cross multiply
    30,386.43x = 45,584.52 × 12,856.41
  4. Step 4: Simplify right side
    30,386.43x = 586,053,214.49
  5. Step 5: Solve for x
    x = 586,053,214.49/30,386.43
  6. Step 6: Final answer
    x = 19,286.68

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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.