Home / 20,994.39-31,502.52-9,304.88

Finding the Fourth Proportional to 20,994.39, 31,502.52 and 9,304.88

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Solution

The fourth proportional to 20,994.39, 31,502.52 and 9,304.88 is: 13,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.39 : 31,502.52 = 9,304.88 : x
  2. Step 2: Convert to fraction form
    20,994.39/31,502.52 = 9,304.88/x
  3. Step 3: Cross multiply
    20,994.39x = 31,502.52 × 9,304.88
  4. Step 4: Simplify right side
    20,994.39x = 293,127,010.79
  5. Step 5: Solve for x
    x = 293,127,010.79/20,994.39
  6. Step 6: Final answer
    x = 13,962.16

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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.