Home / 39,240.82-58,852.93-12,939.31

Finding the Fourth Proportional to 39,240.82, 58,852.93 and 12,939.31

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Solution

The fourth proportional to 39,240.82, 58,852.93 and 12,939.31 is: 19,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,240.82 : 58,852.93 = 12,939.31 : x
  2. Step 2: Convert to fraction form
    39,240.82/58,852.93 = 12,939.31/x
  3. Step 3: Cross multiply
    39,240.82x = 58,852.93 × 12,939.31
  4. Step 4: Simplify right side
    39,240.82x = 761,516,305.68
  5. Step 5: Solve for x
    x = 761,516,305.68/39,240.82
  6. Step 6: Final answer
    x = 19,406.23

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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.