Home / 25,111.60-34,654.35-13,780.92

Finding the Fourth Proportional to 25,111.60, 34,654.35 and 13,780.92

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Solution

The fourth proportional to 25,111.60, 34,654.35 and 13,780.92 is: 19,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,111.60 : 34,654.35 = 13,780.92 : x
  2. Step 2: Convert to fraction form
    25,111.60/34,654.35 = 13,780.92/x
  3. Step 3: Cross multiply
    25,111.60x = 34,654.35 × 13,780.92
  4. Step 4: Simplify right side
    25,111.60x = 477,568,825.00
  5. Step 5: Solve for x
    x = 477,568,825.00/25,111.60
  6. Step 6: Final answer
    x = 19,017.86

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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.