Home / 21,056.90-31,576.14-11,193.94

Finding the Fourth Proportional to 21,056.90, 31,576.14 and 11,193.94

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Solution

The fourth proportional to 21,056.90, 31,576.14 and 11,193.94 is: 16,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.90 : 31,576.14 = 11,193.94 : x
  2. Step 2: Convert to fraction form
    21,056.90/31,576.14 = 11,193.94/x
  3. Step 3: Cross multiply
    21,056.90x = 31,576.14 × 11,193.94
  4. Step 4: Simplify right side
    21,056.90x = 353,461,337.65
  5. Step 5: Solve for x
    x = 353,461,337.65/21,056.90
  6. Step 6: Final answer
    x = 16,786.01

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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.