Home / 25,461.92-38,102.58-18,782.61

Finding the Fourth Proportional to 25,461.92, 38,102.58 and 18,782.61

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Solution

The fourth proportional to 25,461.92, 38,102.58 and 18,782.61 is: 28,107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,461.92 : 38,102.58 = 18,782.61 : x
  2. Step 2: Convert to fraction form
    25,461.92/38,102.58 = 18,782.61/x
  3. Step 3: Cross multiply
    25,461.92x = 38,102.58 × 18,782.61
  4. Step 4: Simplify right side
    25,461.92x = 715,665,900.13
  5. Step 5: Solve for x
    x = 715,665,900.13/25,461.92
  6. Step 6: Final answer
    x = 28,107.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.