Home / 39,759.43-59,648.91-19,778.35

Finding the Fourth Proportional to 39,759.43, 59,648.91 and 19,778.35

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Solution

The fourth proportional to 39,759.43, 59,648.91 and 19,778.35 is: 29,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,759.43 : 59,648.91 = 19,778.35 : x
  2. Step 2: Convert to fraction form
    39,759.43/59,648.91 = 19,778.35/x
  3. Step 3: Cross multiply
    39,759.43x = 59,648.91 × 19,778.35
  4. Step 4: Simplify right side
    39,759.43x = 1,179,757,019.10
  5. Step 5: Solve for x
    x = 1,179,757,019.10/39,759.43
  6. Step 6: Final answer
    x = 29,672.38

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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.