Home / 39,786.45-59,666.91-13,126.46

Finding the Fourth Proportional to 39,786.45, 59,666.91 and 13,126.46

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Solution

The fourth proportional to 39,786.45, 59,666.91 and 13,126.46 is: 19,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.45 : 59,666.91 = 13,126.46 : x
  2. Step 2: Convert to fraction form
    39,786.45/59,666.91 = 13,126.46/x
  3. Step 3: Cross multiply
    39,786.45x = 59,666.91 × 13,126.46
  4. Step 4: Simplify right side
    39,786.45x = 783,215,307.44
  5. Step 5: Solve for x
    x = 783,215,307.44/39,786.45
  6. Step 6: Final answer
    x = 19,685.48

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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.