Home / 21,649.87-29,866.55-14,093.45

Finding the Fourth Proportional to 21,649.87, 29,866.55 and 14,093.45

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Solution

The fourth proportional to 21,649.87, 29,866.55 and 14,093.45 is: 19,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649.87 : 29,866.55 = 14,093.45 : x
  2. Step 2: Convert to fraction form
    21,649.87/29,866.55 = 14,093.45/x
  3. Step 3: Cross multiply
    21,649.87x = 29,866.55 × 14,093.45
  4. Step 4: Simplify right side
    21,649.87x = 420,922,729.10
  5. Step 5: Solve for x
    x = 420,922,729.10/21,649.87
  6. Step 6: Final answer
    x = 19,442.28

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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.