Home / 21,315.15-29,414.00-11,883.63

Finding the Fourth Proportional to 21,315.15, 29,414.00 and 11,883.63

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Solution

The fourth proportional to 21,315.15, 29,414.00 and 11,883.63 is: 16,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315.15 : 29,414.00 = 11,883.63 : x
  2. Step 2: Convert to fraction form
    21,315.15/29,414.00 = 11,883.63/x
  3. Step 3: Cross multiply
    21,315.15x = 29,414.00 × 11,883.63
  4. Step 4: Simplify right side
    21,315.15x = 349,545,033.40
  5. Step 5: Solve for x
    x = 349,545,033.40/21,315.15
  6. Step 6: Final answer
    x = 16,398.90

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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.