Home / 25,574.92-35,279.25-21,289.62

Finding the Fourth Proportional to 25,574.92, 35,279.25 and 21,289.62

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Solution

The fourth proportional to 25,574.92, 35,279.25 and 21,289.62 is: 29,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,574.92 : 35,279.25 = 21,289.62 : x
  2. Step 2: Convert to fraction form
    25,574.92/35,279.25 = 21,289.62/x
  3. Step 3: Cross multiply
    25,574.92x = 35,279.25 × 21,289.62
  4. Step 4: Simplify right side
    25,574.92x = 751,081,649.99
  5. Step 5: Solve for x
    x = 751,081,649.99/25,574.92
  6. Step 6: Final answer
    x = 29,367.90

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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.