Home / 20,632.37-28,472.45-11,679.84

Finding the Fourth Proportional to 20,632.37, 28,472.45 and 11,679.84

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Solution

The fourth proportional to 20,632.37, 28,472.45 and 11,679.84 is: 16,118.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632.37 : 28,472.45 = 11,679.84 : x
  2. Step 2: Convert to fraction form
    20,632.37/28,472.45 = 11,679.84/x
  3. Step 3: Cross multiply
    20,632.37x = 28,472.45 × 11,679.84
  4. Step 4: Simplify right side
    20,632.37x = 332,553,602.01
  5. Step 5: Solve for x
    x = 332,553,602.01/20,632.37
  6. Step 6: Final answer
    x = 16,118.06

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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.