Home / 39,778.38-59,654.82-13,118.38

Finding the Fourth Proportional to 39,778.38, 59,654.82 and 13,118.38

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Solution

The fourth proportional to 39,778.38, 59,654.82 and 13,118.38 is: 19,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,778.38 : 59,654.82 = 13,118.38 : x
  2. Step 2: Convert to fraction form
    39,778.38/59,654.82 = 13,118.38/x
  3. Step 3: Cross multiply
    39,778.38x = 59,654.82 × 13,118.38
  4. Step 4: Simplify right side
    39,778.38x = 782,574,803.45
  5. Step 5: Solve for x
    x = 782,574,803.45/39,778.38
  6. Step 6: Final answer
    x = 19,673.37

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1.5x scale

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.