Home / 38,986.91-58,478.99-14,021.39

Finding the Fourth Proportional to 38,986.91, 58,478.99 and 14,021.39

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Solution

The fourth proportional to 38,986.91, 58,478.99 and 14,021.39 is: 21,031.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986.91 : 58,478.99 = 14,021.39 : x
  2. Step 2: Convert to fraction form
    38,986.91/58,478.99 = 14,021.39/x
  3. Step 3: Cross multiply
    38,986.91x = 58,478.99 × 14,021.39
  4. Step 4: Simplify right side
    38,986.91x = 819,956,363.09
  5. Step 5: Solve for x
    x = 819,956,363.09/38,986.91
  6. Step 6: Final answer
    x = 21,031.58

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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.