Home / 21,346.92-29,459.73-11,788.15

Finding the Fourth Proportional to 21,346.92, 29,459.73 and 11,788.15

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Solution

The fourth proportional to 21,346.92, 29,459.73 and 11,788.15 is: 16,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.92 : 29,459.73 = 11,788.15 : x
  2. Step 2: Convert to fraction form
    21,346.92/29,459.73 = 11,788.15/x
  3. Step 3: Cross multiply
    21,346.92x = 29,459.73 × 11,788.15
  4. Step 4: Simplify right side
    21,346.92x = 347,275,657.26
  5. Step 5: Solve for x
    x = 347,275,657.26/21,346.92
  6. Step 6: Final answer
    x = 16,268.19

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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.