Home / 21,383.71-29,508.23-11,823.02

Finding the Fourth Proportional to 21,383.71, 29,508.23 and 11,823.02

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Solution

The fourth proportional to 21,383.71, 29,508.23 and 11,823.02 is: 16,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.71 : 29,508.23 = 11,823.02 : x
  2. Step 2: Convert to fraction form
    21,383.71/29,508.23 = 11,823.02/x
  3. Step 3: Cross multiply
    21,383.71x = 29,508.23 × 11,823.02
  4. Step 4: Simplify right side
    21,383.71x = 348,876,386.13
  5. Step 5: Solve for x
    x = 348,876,386.13/21,383.71
  6. Step 6: Final answer
    x = 16,315.06

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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.