Home / 20,484.12-28,250.47-14,121.07

Finding the Fourth Proportional to 20,484.12, 28,250.47 and 14,121.07

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Solution

The fourth proportional to 20,484.12, 28,250.47 and 14,121.07 is: 19,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.12 : 28,250.47 = 14,121.07 : x
  2. Step 2: Convert to fraction form
    20,484.12/28,250.47 = 14,121.07/x
  3. Step 3: Cross multiply
    20,484.12x = 28,250.47 × 14,121.07
  4. Step 4: Simplify right side
    20,484.12x = 398,926,811.43
  5. Step 5: Solve for x
    x = 398,926,811.43/20,484.12
  6. Step 6: Final answer
    x = 19,474.93

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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.