Home / 42,889.26-64,330.80-13,306.33

Finding the Fourth Proportional to 42,889.26, 64,330.80 and 13,306.33

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Solution

The fourth proportional to 42,889.26, 64,330.80 and 13,306.33 is: 19,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,889.26 : 64,330.80 = 13,306.33 : x
  2. Step 2: Convert to fraction form
    42,889.26/64,330.80 = 13,306.33/x
  3. Step 3: Cross multiply
    42,889.26x = 64,330.80 × 13,306.33
  4. Step 4: Simplify right side
    42,889.26x = 856,006,853.96
  5. Step 5: Solve for x
    x = 856,006,853.96/42,889.26
  6. Step 6: Final answer
    x = 19,958.54

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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.