Home / 36,431.77-50,274.86-20,515.88

Finding the Fourth Proportional to 36,431.77, 50,274.86 and 20,515.88

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Solution

The fourth proportional to 36,431.77, 50,274.86 and 20,515.88 is: 28,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,431.77 : 50,274.86 = 20,515.88 : x
  2. Step 2: Convert to fraction form
    36,431.77/50,274.86 = 20,515.88/x
  3. Step 3: Cross multiply
    36,431.77x = 50,274.86 × 20,515.88
  4. Step 4: Simplify right side
    36,431.77x = 1,031,432,743.40
  5. Step 5: Solve for x
    x = 1,031,432,743.40/36,431.77
  6. Step 6: Final answer
    x = 28,311.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.