Home / 21,564.03-29,758.41-12,133.20

Finding the Fourth Proportional to 21,564.03, 29,758.41 and 12,133.20

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Solution

The fourth proportional to 21,564.03, 29,758.41 and 12,133.20 is: 16,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.03 : 29,758.41 = 12,133.20 : x
  2. Step 2: Convert to fraction form
    21,564.03/29,758.41 = 12,133.20/x
  3. Step 3: Cross multiply
    21,564.03x = 29,758.41 × 12,133.20
  4. Step 4: Simplify right side
    21,564.03x = 361,064,740.21
  5. Step 5: Solve for x
    x = 361,064,740.21/21,564.03
  6. Step 6: Final answer
    x = 16,743.84

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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.