Home / 36,113.05-54,170.76-12,420.36

Finding the Fourth Proportional to 36,113.05, 54,170.76 and 12,420.36

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Solution

The fourth proportional to 36,113.05, 54,170.76 and 12,420.36 is: 18,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,113.05 : 54,170.76 = 12,420.36 : x
  2. Step 2: Convert to fraction form
    36,113.05/54,170.76 = 12,420.36/x
  3. Step 3: Cross multiply
    36,113.05x = 54,170.76 × 12,420.36
  4. Step 4: Simplify right side
    36,113.05x = 672,820,340.67
  5. Step 5: Solve for x
    x = 672,820,340.67/36,113.05
  6. Step 6: Final answer
    x = 18,630.95

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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.