Home / 21,014.88-29,012.40-13,950.96

Finding the Fourth Proportional to 21,014.88, 29,012.40 and 13,950.96

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Solution

The fourth proportional to 21,014.88, 29,012.40 and 13,950.96 is: 19,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.88 : 29,012.40 = 13,950.96 : x
  2. Step 2: Convert to fraction form
    21,014.88/29,012.40 = 13,950.96/x
  3. Step 3: Cross multiply
    21,014.88x = 29,012.40 × 13,950.96
  4. Step 4: Simplify right side
    21,014.88x = 404,750,831.90
  5. Step 5: Solve for x
    x = 404,750,831.90/21,014.88
  6. Step 6: Final answer
    x = 19,260.20

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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.