Home / 20,623.68-28,460.61-11,670.93

Finding the Fourth Proportional to 20,623.68, 28,460.61 and 11,670.93

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Solution

The fourth proportional to 20,623.68, 28,460.61 and 11,670.93 is: 16,105.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.68 : 28,460.61 = 11,670.93 : x
  2. Step 2: Convert to fraction form
    20,623.68/28,460.61 = 11,670.93/x
  3. Step 3: Cross multiply
    20,623.68x = 28,460.61 × 11,670.93
  4. Step 4: Simplify right side
    20,623.68x = 332,161,787.07
  5. Step 5: Solve for x
    x = 332,161,787.07/20,623.68
  6. Step 6: Final answer
    x = 16,105.84

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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.