Home / 21,114.12-31,676.58-6,322.98

Finding the Fourth Proportional to 21,114.12, 31,676.58 and 6,322.98

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Solution

The fourth proportional to 21,114.12, 31,676.58 and 6,322.98 is: 9,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,114.12 : 31,676.58 = 6,322.98 : x
  2. Step 2: Convert to fraction form
    21,114.12/31,676.58 = 6,322.98/x
  3. Step 3: Cross multiply
    21,114.12x = 31,676.58 × 6,322.98
  4. Step 4: Simplify right side
    21,114.12x = 200,290,381.81
  5. Step 5: Solve for x
    x = 200,290,381.81/21,114.12
  6. Step 6: Final answer
    x = 9,486.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.