Home / 39,409.59-59,123.30-13,115.37

Finding the Fourth Proportional to 39,409.59, 59,123.30 and 13,115.37

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Solution

The fourth proportional to 39,409.59, 59,123.30 and 13,115.37 is: 19,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,409.59 : 59,123.30 = 13,115.37 : x
  2. Step 2: Convert to fraction form
    39,409.59/59,123.30 = 13,115.37/x
  3. Step 3: Cross multiply
    39,409.59x = 59,123.30 × 13,115.37
  4. Step 4: Simplify right side
    39,409.59x = 775,423,889.54
  5. Step 5: Solve for x
    x = 775,423,889.54/39,409.59
  6. Step 6: Final answer
    x = 19,676.02

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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.