Home / 20,192.64-27,868.08-12,235.20

Finding the Fourth Proportional to 20,192.64, 27,868.08 and 12,235.20

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Solution

The fourth proportional to 20,192.64, 27,868.08 and 12,235.20 is: 16,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.64 : 27,868.08 = 12,235.20 : x
  2. Step 2: Convert to fraction form
    20,192.64/27,868.08 = 12,235.20/x
  3. Step 3: Cross multiply
    20,192.64x = 27,868.08 × 12,235.20
  4. Step 4: Simplify right side
    20,192.64x = 340,971,532.42
  5. Step 5: Solve for x
    x = 340,971,532.42/20,192.64
  6. Step 6: Final answer
    x = 16,885.93

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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.