Home / 20,741.19-28,623.02-11,309.79

Finding the Fourth Proportional to 20,741.19, 28,623.02 and 11,309.79

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Solution

The fourth proportional to 20,741.19, 28,623.02 and 11,309.79 is: 15,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.19 : 28,623.02 = 11,309.79 : x
  2. Step 2: Convert to fraction form
    20,741.19/28,623.02 = 11,309.79/x
  3. Step 3: Cross multiply
    20,741.19x = 28,623.02 × 11,309.79
  4. Step 4: Simplify right side
    20,741.19x = 323,720,230.53
  5. Step 5: Solve for x
    x = 323,720,230.53/20,741.19
  6. Step 6: Final answer
    x = 15,607.61

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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.