Home / 30,161.70-45,224.33-13,518.63

Finding the Fourth Proportional to 30,161.70, 45,224.33 and 13,518.63

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Solution

The fourth proportional to 30,161.70, 45,224.33 and 13,518.63 is: 20,269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.70 : 45,224.33 = 13,518.63 : x
  2. Step 2: Convert to fraction form
    30,161.70/45,224.33 = 13,518.63/x
  3. Step 3: Cross multiply
    30,161.70x = 45,224.33 × 13,518.63
  4. Step 4: Simplify right side
    30,161.70x = 611,370,916.67
  5. Step 5: Solve for x
    x = 611,370,916.67/30,161.70
  6. Step 6: Final answer
    x = 20,269.78

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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.