Home / 25,209.69-34,790.21-13,879.74

Finding the Fourth Proportional to 25,209.69, 34,790.21 and 13,879.74

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Solution

The fourth proportional to 25,209.69, 34,790.21 and 13,879.74 is: 19,154.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,209.69 : 34,790.21 = 13,879.74 : x
  2. Step 2: Convert to fraction form
    25,209.69/34,790.21 = 13,879.74/x
  3. Step 3: Cross multiply
    25,209.69x = 34,790.21 × 13,879.74
  4. Step 4: Simplify right side
    25,209.69x = 482,879,069.35
  5. Step 5: Solve for x
    x = 482,879,069.35/25,209.69
  6. Step 6: Final answer
    x = 19,154.50

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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.