Home / 21,404.70-32,106.45-9,717.90

Finding the Fourth Proportional to 21,404.70, 32,106.45 and 9,717.90

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Solution

The fourth proportional to 21,404.70, 32,106.45 and 9,717.90 is: 14,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.70 : 32,106.45 = 9,717.90 : x
  2. Step 2: Convert to fraction form
    21,404.70/32,106.45 = 9,717.90/x
  3. Step 3: Cross multiply
    21,404.70x = 32,106.45 × 9,717.90
  4. Step 4: Simplify right side
    21,404.70x = 312,007,270.46
  5. Step 5: Solve for x
    x = 312,007,270.46/21,404.70
  6. Step 6: Final answer
    x = 14,576.58

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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.