Home / 36,219.17-54,315.45-12,520.64

Finding the Fourth Proportional to 36,219.17, 54,315.45 and 12,520.64

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Solution

The fourth proportional to 36,219.17, 54,315.45 and 12,520.64 is: 18,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,219.17 : 54,315.45 = 12,520.64 : x
  2. Step 2: Convert to fraction form
    36,219.17/54,315.45 = 12,520.64/x
  3. Step 3: Cross multiply
    36,219.17x = 54,315.45 × 12,520.64
  4. Step 4: Simplify right side
    36,219.17x = 680,064,331.68
  5. Step 5: Solve for x
    x = 680,064,331.68/36,219.17
  6. Step 6: Final answer
    x = 18,776.36

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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.