Home / 39,620.06-54,676.10-21,714.66

Finding the Fourth Proportional to 39,620.06, 54,676.10 and 21,714.66

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Solution

The fourth proportional to 39,620.06, 54,676.10 and 21,714.66 is: 29,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,620.06 : 54,676.10 = 21,714.66 : x
  2. Step 2: Convert to fraction form
    39,620.06/54,676.10 = 21,714.66/x
  3. Step 3: Cross multiply
    39,620.06x = 54,676.10 × 21,714.66
  4. Step 4: Simplify right side
    39,620.06x = 1,187,272,921.63
  5. Step 5: Solve for x
    x = 1,187,272,921.63/39,620.06
  6. Step 6: Final answer
    x = 29,966.46

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1.5x scale

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.