Home / 21,258.90-29,338.66-11,827.46

Finding the Fourth Proportional to 21,258.90, 29,338.66 and 11,827.46

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Solution

The fourth proportional to 21,258.90, 29,338.66 and 11,827.46 is: 16,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.90 : 29,338.66 = 11,827.46 : x
  2. Step 2: Convert to fraction form
    21,258.90/29,338.66 = 11,827.46/x
  3. Step 3: Cross multiply
    21,258.90x = 29,338.66 × 11,827.46
  4. Step 4: Simplify right side
    21,258.90x = 347,001,827.60
  5. Step 5: Solve for x
    x = 347,001,827.60/21,258.90
  6. Step 6: Final answer
    x = 16,322.66

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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.