Home / 21,133.90-29,164.50-11,573.68

Finding the Fourth Proportional to 21,133.90, 29,164.50 and 11,573.68

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Solution

The fourth proportional to 21,133.90, 29,164.50 and 11,573.68 is: 15,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.90 : 29,164.50 = 11,573.68 : x
  2. Step 2: Convert to fraction form
    21,133.90/29,164.50 = 11,573.68/x
  3. Step 3: Cross multiply
    21,133.90x = 29,164.50 × 11,573.68
  4. Step 4: Simplify right side
    21,133.90x = 337,540,590.36
  5. Step 5: Solve for x
    x = 337,540,590.36/21,133.90
  6. Step 6: Final answer
    x = 15,971.52

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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.