Home / 21,559.29-29,751.06-11,998.86

Finding the Fourth Proportional to 21,559.29, 29,751.06 and 11,998.86

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Solution

The fourth proportional to 21,559.29, 29,751.06 and 11,998.86 is: 16,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.29 : 29,751.06 = 11,998.86 : x
  2. Step 2: Convert to fraction form
    21,559.29/29,751.06 = 11,998.86/x
  3. Step 3: Cross multiply
    21,559.29x = 29,751.06 × 11,998.86
  4. Step 4: Simplify right side
    21,559.29x = 356,978,803.79
  5. Step 5: Solve for x
    x = 356,978,803.79/21,559.29
  6. Step 6: Final answer
    x = 16,558.00

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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.