Home / 36,114.05-54,172.26-12,421.36

Finding the Fourth Proportional to 36,114.05, 54,172.26 and 12,421.36

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Solution

The fourth proportional to 36,114.05, 54,172.26 and 12,421.36 is: 18,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,114.05 : 54,172.26 = 12,421.36 : x
  2. Step 2: Convert to fraction form
    36,114.05/54,172.26 = 12,421.36/x
  3. Step 3: Cross multiply
    36,114.05x = 54,172.26 × 12,421.36
  4. Step 4: Simplify right side
    36,114.05x = 672,893,143.47
  5. Step 5: Solve for x
    x = 672,893,143.47/36,114.05
  6. Step 6: Final answer
    x = 18,632.45

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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.