Home / 25,020.21-34,527.35-13,689.66

Finding the Fourth Proportional to 25,020.21, 34,527.35 and 13,689.66

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Solution

The fourth proportional to 25,020.21, 34,527.35 and 13,689.66 is: 18,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,020.21 : 34,527.35 = 13,689.66 : x
  2. Step 2: Convert to fraction form
    25,020.21/34,527.35 = 13,689.66/x
  3. Step 3: Cross multiply
    25,020.21x = 34,527.35 × 13,689.66
  4. Step 4: Simplify right side
    25,020.21x = 472,667,613.75
  5. Step 5: Solve for x
    x = 472,667,613.75/25,020.21
  6. Step 6: Final answer
    x = 18,891.43

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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.