Home / 30,363.35-45,531.64-13,722.71

Finding the Fourth Proportional to 30,363.35, 45,531.64 and 13,722.71

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Solution

The fourth proportional to 30,363.35, 45,531.64 and 13,722.71 is: 20,578.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363.35 : 45,531.64 = 13,722.71 : x
  2. Step 2: Convert to fraction form
    30,363.35/45,531.64 = 13,722.71/x
  3. Step 3: Cross multiply
    30,363.35x = 45,531.64 × 13,722.71
  4. Step 4: Simplify right side
    30,363.35x = 624,817,491.54
  5. Step 5: Solve for x
    x = 624,817,491.54/30,363.35
  6. Step 6: Final answer
    x = 20,578.02

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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.