Home / 21,065.67-31,607.01-9,370.89

Finding the Fourth Proportional to 21,065.67, 31,607.01 and 9,370.89

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Solution

The fourth proportional to 21,065.67, 31,607.01 and 9,370.89 is: 14,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.67 : 31,607.01 = 9,370.89 : x
  2. Step 2: Convert to fraction form
    21,065.67/31,607.01 = 9,370.89/x
  3. Step 3: Cross multiply
    21,065.67x = 31,607.01 × 9,370.89
  4. Step 4: Simplify right side
    21,065.67x = 296,185,813.94
  5. Step 5: Solve for x
    x = 296,185,813.94/21,065.67
  6. Step 6: Final answer
    x = 14,060.12

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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.