Home / 21,020.01-29,007.81-11,588.91

Finding the Fourth Proportional to 21,020.01, 29,007.81 and 11,588.91

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Solution

The fourth proportional to 21,020.01, 29,007.81 and 11,588.91 is: 15,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.01 : 29,007.81 = 11,588.91 : x
  2. Step 2: Convert to fraction form
    21,020.01/29,007.81 = 11,588.91/x
  3. Step 3: Cross multiply
    21,020.01x = 29,007.81 × 11,588.91
  4. Step 4: Simplify right side
    21,020.01x = 336,168,899.39
  5. Step 5: Solve for x
    x = 336,168,899.39/21,020.01
  6. Step 6: Final answer
    x = 15,992.80

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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.