Home / 21,698.24-29,944.13-12,137.81

Finding the Fourth Proportional to 21,698.24, 29,944.13 and 12,137.81

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Solution

The fourth proportional to 21,698.24, 29,944.13 and 12,137.81 is: 16,750.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,698.24 : 29,944.13 = 12,137.81 : x
  2. Step 2: Convert to fraction form
    21,698.24/29,944.13 = 12,137.81/x
  3. Step 3: Cross multiply
    21,698.24x = 29,944.13 × 12,137.81
  4. Step 4: Simplify right side
    21,698.24x = 363,455,950.15
  5. Step 5: Solve for x
    x = 363,455,950.15/21,698.24
  6. Step 6: Final answer
    x = 16,750.48

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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.