Home / 39,619.86-54,675.84-21,714.48

Finding the Fourth Proportional to 39,619.86, 54,675.84 and 21,714.48

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Solution

The fourth proportional to 39,619.86, 54,675.84 and 21,714.48 is: 29,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.86 : 54,675.84 = 21,714.48 : x
  2. Step 2: Convert to fraction form
    39,619.86/54,675.84 = 21,714.48/x
  3. Step 3: Cross multiply
    39,619.86x = 54,675.84 × 21,714.48
  4. Step 4: Simplify right side
    39,619.86x = 1,187,257,434.16
  5. Step 5: Solve for x
    x = 1,187,257,434.16/39,619.86
  6. Step 6: Final answer
    x = 29,966.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.