Home / 39,604.74-54,654.51-21,700.86

Finding the Fourth Proportional to 39,604.74, 54,654.51 and 21,700.86

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Solution

The fourth proportional to 39,604.74, 54,654.51 and 21,700.86 is: 29,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,604.74 : 54,654.51 = 21,700.86 : x
  2. Step 2: Convert to fraction form
    39,604.74/54,654.51 = 21,700.86/x
  3. Step 3: Cross multiply
    39,604.74x = 54,654.51 × 21,700.86
  4. Step 4: Simplify right side
    39,604.74x = 1,186,049,869.88
  5. Step 5: Solve for x
    x = 1,186,049,869.88/39,604.74
  6. Step 6: Final answer
    x = 29,947.17

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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.