Home / 21,258.89-29,306.55-14,076.77

Finding the Fourth Proportional to 21,258.89, 29,306.55 and 14,076.77

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Solution

The fourth proportional to 21,258.89, 29,306.55 and 14,076.77 is: 19,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.89 : 29,306.55 = 14,076.77 : x
  2. Step 2: Convert to fraction form
    21,258.89/29,306.55 = 14,076.77/x
  3. Step 3: Cross multiply
    21,258.89x = 29,306.55 × 14,076.77
  4. Step 4: Simplify right side
    21,258.89x = 412,541,563.84
  5. Step 5: Solve for x
    x = 412,541,563.84/21,258.89
  6. Step 6: Final answer
    x = 19,405.60

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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.