Home / 25,211.01-34,789.84-13,878.30

Finding the Fourth Proportional to 25,211.01, 34,789.84 and 13,878.30

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Solution

The fourth proportional to 25,211.01, 34,789.84 and 13,878.30 is: 19,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,211.01 : 34,789.84 = 13,878.30 : x
  2. Step 2: Convert to fraction form
    25,211.01/34,789.84 = 13,878.30/x
  3. Step 3: Cross multiply
    25,211.01x = 34,789.84 × 13,878.30
  4. Step 4: Simplify right side
    25,211.01x = 482,823,836.47
  5. Step 5: Solve for x
    x = 482,823,836.47/25,211.01
  6. Step 6: Final answer
    x = 19,151.31

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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.