Home / 21,036.98-31,555.46-6,245.89

Finding the Fourth Proportional to 21,036.98, 31,555.46 and 6,245.89

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Solution

The fourth proportional to 21,036.98, 31,555.46 and 6,245.89 is: 9,368.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.98 : 31,555.46 = 6,245.89 : x
  2. Step 2: Convert to fraction form
    21,036.98/31,555.46 = 6,245.89/x
  3. Step 3: Cross multiply
    21,036.98x = 31,555.46 × 6,245.89
  4. Step 4: Simplify right side
    21,036.98x = 197,091,932.06
  5. Step 5: Solve for x
    x = 197,091,932.06/21,036.98
  6. Step 6: Final answer
    x = 9,368.83

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1.5x scale

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.