Home / 21,550.48-29,739.84-12,118.96

Finding the Fourth Proportional to 21,550.48, 29,739.84 and 12,118.96

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Solution

The fourth proportional to 21,550.48, 29,739.84 and 12,118.96 is: 16,724.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.48 : 29,739.84 = 12,118.96 : x
  2. Step 2: Convert to fraction form
    21,550.48/29,739.84 = 12,118.96/x
  3. Step 3: Cross multiply
    21,550.48x = 29,739.84 × 12,118.96
  4. Step 4: Simplify right side
    21,550.48x = 360,415,931.37
  5. Step 5: Solve for x
    x = 360,415,931.37/21,550.48
  6. Step 6: Final answer
    x = 16,724.26

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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.