Home / 25,328.92-34,909.91-18,511.78

Finding the Fourth Proportional to 25,328.92, 34,909.91 and 18,511.78

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Solution

The fourth proportional to 25,328.92, 34,909.91 and 18,511.78 is: 25,514.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,328.92 : 34,909.91 = 18,511.78 : x
  2. Step 2: Convert to fraction form
    25,328.92/34,909.91 = 18,511.78/x
  3. Step 3: Cross multiply
    25,328.92x = 34,909.91 × 18,511.78
  4. Step 4: Simplify right side
    25,328.92x = 646,244,763.82
  5. Step 5: Solve for x
    x = 646,244,763.82/25,328.92
  6. Step 6: Final answer
    x = 25,514.11

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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.