Home / 21,342.08-29,454.03-11,783.68

Finding the Fourth Proportional to 21,342.08, 29,454.03 and 11,783.68

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Solution

The fourth proportional to 21,342.08, 29,454.03 and 11,783.68 is: 16,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.08 : 29,454.03 = 11,783.68 : x
  2. Step 2: Convert to fraction form
    21,342.08/29,454.03 = 11,783.68/x
  3. Step 3: Cross multiply
    21,342.08x = 29,454.03 × 11,783.68
  4. Step 4: Simplify right side
    21,342.08x = 347,076,716.96
  5. Step 5: Solve for x
    x = 347,076,716.96/21,342.08
  6. Step 6: Final answer
    x = 16,262.55

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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.