Home / 21,383.51-29,507.53-11,823.41

Finding the Fourth Proportional to 21,383.51, 29,507.53 and 11,823.41

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Solution

The fourth proportional to 21,383.51, 29,507.53 and 11,823.41 is: 16,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.51 : 29,507.53 = 11,823.41 : x
  2. Step 2: Convert to fraction form
    21,383.51/29,507.53 = 11,823.41/x
  3. Step 3: Cross multiply
    21,383.51x = 29,507.53 × 11,823.41
  4. Step 4: Simplify right side
    21,383.51x = 348,879,654.28
  5. Step 5: Solve for x
    x = 348,879,654.28/21,383.51
  6. Step 6: Final answer
    x = 16,315.36

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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.