Home / 21,304.98-31,956.26-6,513.88

Finding the Fourth Proportional to 21,304.98, 31,956.26 and 6,513.88

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Solution

The fourth proportional to 21,304.98, 31,956.26 and 6,513.88 is: 9,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.98 : 31,956.26 = 6,513.88 : x
  2. Step 2: Convert to fraction form
    21,304.98/31,956.26 = 6,513.88/x
  3. Step 3: Cross multiply
    21,304.98x = 31,956.26 × 6,513.88
  4. Step 4: Simplify right side
    21,304.98x = 208,159,242.89
  5. Step 5: Solve for x
    x = 208,159,242.89/21,304.98
  6. Step 6: Final answer
    x = 9,770.45

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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.