Home / 21,510.05-29,682.75-11,950.47

Finding the Fourth Proportional to 21,510.05, 29,682.75 and 11,950.47

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Solution

The fourth proportional to 21,510.05, 29,682.75 and 11,950.47 is: 16,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,510.05 : 29,682.75 = 11,950.47 : x
  2. Step 2: Convert to fraction form
    21,510.05/29,682.75 = 11,950.47/x
  3. Step 3: Cross multiply
    21,510.05x = 29,682.75 × 11,950.47
  4. Step 4: Simplify right side
    21,510.05x = 354,722,813.39
  5. Step 5: Solve for x
    x = 354,722,813.39/21,510.05
  6. Step 6: Final answer
    x = 16,491.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.