Home / 21,208.60-29,267.32-11,648.68

Finding the Fourth Proportional to 21,208.60, 29,267.32 and 11,648.68

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Solution

The fourth proportional to 21,208.60, 29,267.32 and 11,648.68 is: 16,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208.60 : 29,267.32 = 11,648.68 : x
  2. Step 2: Convert to fraction form
    21,208.60/29,267.32 = 11,648.68/x
  3. Step 3: Cross multiply
    21,208.60x = 29,267.32 × 11,648.68
  4. Step 4: Simplify right side
    21,208.60x = 340,925,645.14
  5. Step 5: Solve for x
    x = 340,925,645.14/21,208.60
  6. Step 6: Final answer
    x = 16,074.88

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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.