Home / 21,510.13-29,682.97-11,950.64

Finding the Fourth Proportional to 21,510.13, 29,682.97 and 11,950.64

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Solution

The fourth proportional to 21,510.13, 29,682.97 and 11,950.64 is: 16,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,510.13 : 29,682.97 = 11,950.64 : x
  2. Step 2: Convert to fraction form
    21,510.13/29,682.97 = 11,950.64/x
  3. Step 3: Cross multiply
    21,510.13x = 29,682.97 × 11,950.64
  4. Step 4: Simplify right side
    21,510.13x = 354,730,488.60
  5. Step 5: Solve for x
    x = 354,730,488.60/21,510.13
  6. Step 6: Final answer
    x = 16,491.32

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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.