Home / 25,020.15-34,527.50-13,689.48

Finding the Fourth Proportional to 25,020.15, 34,527.50 and 13,689.48

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Solution

The fourth proportional to 25,020.15, 34,527.50 and 13,689.48 is: 18,891.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,020.15 : 34,527.50 = 13,689.48 : x
  2. Step 2: Convert to fraction form
    25,020.15/34,527.50 = 13,689.48/x
  3. Step 3: Cross multiply
    25,020.15x = 34,527.50 × 13,689.48
  4. Step 4: Simplify right side
    25,020.15x = 472,663,520.70
  5. Step 5: Solve for x
    x = 472,663,520.70/25,020.15
  6. Step 6: Final answer
    x = 18,891.31

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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.