Home / 36,788.40-55,186.20-13,409.34

Finding the Fourth Proportional to 36,788.40, 55,186.20 and 13,409.34

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Solution

The fourth proportional to 36,788.40, 55,186.20 and 13,409.34 is: 20,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,788.40 : 55,186.20 = 13,409.34 : x
  2. Step 2: Convert to fraction form
    36,788.40/55,186.20 = 13,409.34/x
  3. Step 3: Cross multiply
    36,788.40x = 55,186.20 × 13,409.34
  4. Step 4: Simplify right side
    36,788.40x = 740,010,519.11
  5. Step 5: Solve for x
    x = 740,010,519.11/36,788.40
  6. Step 6: Final answer
    x = 20,115.32

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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.