Home / 21,187.96-29,246.10-14,918.68

Finding the Fourth Proportional to 21,187.96, 29,246.10 and 14,918.68

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Solution

The fourth proportional to 21,187.96, 29,246.10 and 14,918.68 is: 20,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.96 : 29,246.10 = 14,918.68 : x
  2. Step 2: Convert to fraction form
    21,187.96/29,246.10 = 14,918.68/x
  3. Step 3: Cross multiply
    21,187.96x = 29,246.10 × 14,918.68
  4. Step 4: Simplify right side
    21,187.96x = 436,313,207.15
  5. Step 5: Solve for x
    x = 436,313,207.15/21,187.96
  6. Step 6: Final answer
    x = 20,592.51

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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.