Home / 21,258.12-29,335.44-11,826.48

Finding the Fourth Proportional to 21,258.12, 29,335.44 and 11,826.48

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Solution

The fourth proportional to 21,258.12, 29,335.44 and 11,826.48 is: 16,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.12 : 29,335.44 = 11,826.48 : x
  2. Step 2: Convert to fraction form
    21,258.12/29,335.44 = 11,826.48/x
  3. Step 3: Cross multiply
    21,258.12x = 29,335.44 × 11,826.48
  4. Step 4: Simplify right side
    21,258.12x = 346,934,994.45
  5. Step 5: Solve for x
    x = 346,934,994.45/21,258.12
  6. Step 6: Final answer
    x = 16,320.12

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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.