Home / 21,258.39-29,336.55-11,826.93

Finding the Fourth Proportional to 21,258.39, 29,336.55 and 11,826.93

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Solution

The fourth proportional to 21,258.39, 29,336.55 and 11,826.93 is: 16,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.39 : 29,336.55 = 11,826.93 : x
  2. Step 2: Convert to fraction form
    21,258.39/29,336.55 = 11,826.93/x
  3. Step 3: Cross multiply
    21,258.39x = 29,336.55 × 11,826.93
  4. Step 4: Simplify right side
    21,258.39x = 346,961,323.29
  5. Step 5: Solve for x
    x = 346,961,323.29/21,258.39
  6. Step 6: Final answer
    x = 16,321.15

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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.