Home / 21,609.18-29,820.69-11,673.18

Finding the Fourth Proportional to 21,609.18, 29,820.69 and 11,673.18

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Solution

The fourth proportional to 21,609.18, 29,820.69 and 11,673.18 is: 16,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.18 : 29,820.69 = 11,673.18 : x
  2. Step 2: Convert to fraction form
    21,609.18/29,820.69 = 11,673.18/x
  3. Step 3: Cross multiply
    21,609.18x = 29,820.69 × 11,673.18
  4. Step 4: Simplify right side
    21,609.18x = 348,102,282.09
  5. Step 5: Solve for x
    x = 348,102,282.09/21,609.18
  6. Step 6: Final answer
    x = 16,109.00

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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.