Home / 36,108.79-54,172.05-12,416.70

Finding the Fourth Proportional to 36,108.79, 54,172.05 and 12,416.70

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Solution

The fourth proportional to 36,108.79, 54,172.05 and 12,416.70 is: 18,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,108.79 : 54,172.05 = 12,416.70 : x
  2. Step 2: Convert to fraction form
    36,108.79/54,172.05 = 12,416.70/x
  3. Step 3: Cross multiply
    36,108.79x = 54,172.05 × 12,416.70
  4. Step 4: Simplify right side
    36,108.79x = 672,638,093.24
  5. Step 5: Solve for x
    x = 672,638,093.24/36,108.79
  6. Step 6: Final answer
    x = 18,628.10

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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.