Home / 25,013.77-34,519.88-13,682.59

Finding the Fourth Proportional to 25,013.77, 34,519.88 and 13,682.59

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Solution

The fourth proportional to 25,013.77, 34,519.88 and 13,682.59 is: 18,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,013.77 : 34,519.88 = 13,682.59 : x
  2. Step 2: Convert to fraction form
    25,013.77/34,519.88 = 13,682.59/x
  3. Step 3: Cross multiply
    25,013.77x = 34,519.88 × 13,682.59
  4. Step 4: Simplify right side
    25,013.77x = 472,321,364.89
  5. Step 5: Solve for x
    x = 472,321,364.89/25,013.77
  6. Step 6: Final answer
    x = 18,882.45

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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.