Home / 39,128.60-58,693.36-11,049.36

Finding the Fourth Proportional to 39,128.60, 58,693.36 and 11,049.36

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Solution

The fourth proportional to 39,128.60, 58,693.36 and 11,049.36 is: 16,574.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.60 : 58,693.36 = 11,049.36 : x
  2. Step 2: Convert to fraction form
    39,128.60/58,693.36 = 11,049.36/x
  3. Step 3: Cross multiply
    39,128.60x = 58,693.36 × 11,049.36
  4. Step 4: Simplify right side
    39,128.60x = 648,524,064.25
  5. Step 5: Solve for x
    x = 648,524,064.25/39,128.60
  6. Step 6: Final answer
    x = 16,574.17

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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.