Home / 36,319.48-50,118.31-20,406.32

Finding the Fourth Proportional to 36,319.48, 50,118.31 and 20,406.32

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Solution

The fourth proportional to 36,319.48, 50,118.31 and 20,406.32 is: 28,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,319.48 : 50,118.31 = 20,406.32 : x
  2. Step 2: Convert to fraction form
    36,319.48/50,118.31 = 20,406.32/x
  3. Step 3: Cross multiply
    36,319.48x = 50,118.31 × 20,406.32
  4. Step 4: Simplify right side
    36,319.48x = 1,022,730,271.72
  5. Step 5: Solve for x
    x = 1,022,730,271.72/36,319.48
  6. Step 6: Final answer
    x = 28,159.28

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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.