Home / 36,031.04-54,009.84-20,415.68

Finding the Fourth Proportional to 36,031.04, 54,009.84 and 20,415.68

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Solution

The fourth proportional to 36,031.04, 54,009.84 and 20,415.68 is: 30,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,031.04 : 54,009.84 = 20,415.68 : x
  2. Step 2: Convert to fraction form
    36,031.04/54,009.84 = 20,415.68/x
  3. Step 3: Cross multiply
    36,031.04x = 54,009.84 × 20,415.68
  4. Step 4: Simplify right side
    36,031.04x = 1,102,647,610.29
  5. Step 5: Solve for x
    x = 1,102,647,610.29/36,031.04
  6. Step 6: Final answer
    x = 30,602.71

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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.