Home / 21,652.08-29,882.16-12,218.84

Finding the Fourth Proportional to 21,652.08, 29,882.16 and 12,218.84

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Solution

The fourth proportional to 21,652.08, 29,882.16 and 12,218.84 is: 16,863.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.08 : 29,882.16 = 12,218.84 : x
  2. Step 2: Convert to fraction form
    21,652.08/29,882.16 = 12,218.84/x
  3. Step 3: Cross multiply
    21,652.08x = 29,882.16 × 12,218.84
  4. Step 4: Simplify right side
    21,652.08x = 365,125,331.89
  5. Step 5: Solve for x
    x = 365,125,331.89/21,652.08
  6. Step 6: Final answer
    x = 16,863.29

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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.