Home / 21,051.37-29,050.68-12,101.68

Finding the Fourth Proportional to 21,051.37, 29,050.68 and 12,101.68

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Solution

The fourth proportional to 21,051.37, 29,050.68 and 12,101.68 is: 16,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.37 : 29,050.68 = 12,101.68 : x
  2. Step 2: Convert to fraction form
    21,051.37/29,050.68 = 12,101.68/x
  3. Step 3: Cross multiply
    21,051.37x = 29,050.68 × 12,101.68
  4. Step 4: Simplify right side
    21,051.37x = 351,562,033.14
  5. Step 5: Solve for x
    x = 351,562,033.14/21,051.37
  6. Step 6: Final answer
    x = 16,700.20

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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.