Home / 36,420.31-50,264.82-20,507.86

Finding the Fourth Proportional to 36,420.31, 50,264.82 and 20,507.86

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Solution

The fourth proportional to 36,420.31, 50,264.82 and 20,507.86 is: 28,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.31 : 50,264.82 = 20,507.86 : x
  2. Step 2: Convert to fraction form
    36,420.31/50,264.82 = 20,507.86/x
  3. Step 3: Cross multiply
    36,420.31x = 50,264.82 × 20,507.86
  4. Step 4: Simplify right side
    36,420.31x = 1,030,823,891.49
  5. Step 5: Solve for x
    x = 1,030,823,891.49/36,420.31
  6. Step 6: Final answer
    x = 28,303.55

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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.