Home / 21,415.68-32,126.49-6,622.65

Finding the Fourth Proportional to 21,415.68, 32,126.49 and 6,622.65

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Solution

The fourth proportional to 21,415.68, 32,126.49 and 6,622.65 is: 9,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.68 : 32,126.49 = 6,622.65 : x
  2. Step 2: Convert to fraction form
    21,415.68/32,126.49 = 6,622.65/x
  3. Step 3: Cross multiply
    21,415.68x = 32,126.49 × 6,622.65
  4. Step 4: Simplify right side
    21,415.68x = 212,762,499.00
  5. Step 5: Solve for x
    x = 212,762,499.00/21,415.68
  6. Step 6: Final answer
    x = 9,934.89

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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.