Home / 21,564.16-29,757.40-12,133.33

Finding the Fourth Proportional to 21,564.16, 29,757.40 and 12,133.33

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Solution

The fourth proportional to 21,564.16, 29,757.40 and 12,133.33 is: 16,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.16 : 29,757.40 = 12,133.33 : x
  2. Step 2: Convert to fraction form
    21,564.16/29,757.40 = 12,133.33/x
  3. Step 3: Cross multiply
    21,564.16x = 29,757.40 × 12,133.33
  4. Step 4: Simplify right side
    21,564.16x = 361,056,354.14
  5. Step 5: Solve for x
    x = 361,056,354.14/21,564.16
  6. Step 6: Final answer
    x = 16,743.35

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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.