Home / 20,703.51-31,016.04-12,244.71

Finding the Fourth Proportional to 20,703.51, 31,016.04 and 12,244.71

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Solution

The fourth proportional to 20,703.51, 31,016.04 and 12,244.71 is: 18,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.51 : 31,016.04 = 12,244.71 : x
  2. Step 2: Convert to fraction form
    20,703.51/31,016.04 = 12,244.71/x
  3. Step 3: Cross multiply
    20,703.51x = 31,016.04 × 12,244.71
  4. Step 4: Simplify right side
    20,703.51x = 379,782,415.15
  5. Step 5: Solve for x
    x = 379,782,415.15/20,703.51
  6. Step 6: Final answer
    x = 18,343.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.