Home / 21,983.05-32,972.14-6,400.68

Finding the Fourth Proportional to 21,983.05, 32,972.14 and 6,400.68

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Solution

The fourth proportional to 21,983.05, 32,972.14 and 6,400.68 is: 9,600.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983.05 : 32,972.14 = 6,400.68 : x
  2. Step 2: Convert to fraction form
    21,983.05/32,972.14 = 6,400.68/x
  3. Step 3: Cross multiply
    21,983.05x = 32,972.14 × 6,400.68
  4. Step 4: Simplify right side
    21,983.05x = 211,044,117.06
  5. Step 5: Solve for x
    x = 211,044,117.06/21,983.05
  6. Step 6: Final answer
    x = 9,600.31

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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.