Home / 21,949.90-30,282.71-14,400.43

Finding the Fourth Proportional to 21,949.90, 30,282.71 and 14,400.43

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Solution

The fourth proportional to 21,949.90, 30,282.71 and 14,400.43 is: 19,867.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.90 : 30,282.71 = 14,400.43 : x
  2. Step 2: Convert to fraction form
    21,949.90/30,282.71 = 14,400.43/x
  3. Step 3: Cross multiply
    21,949.90x = 30,282.71 × 14,400.43
  4. Step 4: Simplify right side
    21,949.90x = 436,083,897.86
  5. Step 5: Solve for x
    x = 436,083,897.86/21,949.90
  6. Step 6: Final answer
    x = 19,867.24

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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.