Home / 25,140.88-34,694.76-13,811.39

Finding the Fourth Proportional to 25,140.88, 34,694.76 and 13,811.39

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Solution

The fourth proportional to 25,140.88, 34,694.76 and 13,811.39 is: 19,059.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.88 : 34,694.76 = 13,811.39 : x
  2. Step 2: Convert to fraction form
    25,140.88/34,694.76 = 13,811.39/x
  3. Step 3: Cross multiply
    25,140.88x = 34,694.76 × 13,811.39
  4. Step 4: Simplify right side
    25,140.88x = 479,182,869.74
  5. Step 5: Solve for x
    x = 479,182,869.74/25,140.88
  6. Step 6: Final answer
    x = 19,059.91

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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.