Home / 36,438.34-50,285.19-20,521.30

Finding the Fourth Proportional to 36,438.34, 50,285.19 and 20,521.30

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Solution

The fourth proportional to 36,438.34, 50,285.19 and 20,521.30 is: 28,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,438.34 : 50,285.19 = 20,521.30 : x
  2. Step 2: Convert to fraction form
    36,438.34/50,285.19 = 20,521.30/x
  3. Step 3: Cross multiply
    36,438.34x = 50,285.19 × 20,521.30
  4. Step 4: Simplify right side
    36,438.34x = 1,031,917,469.55
  5. Step 5: Solve for x
    x = 1,031,917,469.55/36,438.34
  6. Step 6: Final answer
    x = 28,319.55

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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.