Home / 25,830.48-38,740.20-11,786.52

Finding the Fourth Proportional to 25,830.48, 38,740.20 and 11,786.52

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Solution

The fourth proportional to 25,830.48, 38,740.20 and 11,786.52 is: 17,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,830.48 : 38,740.20 = 11,786.52 : x
  2. Step 2: Convert to fraction form
    25,830.48/38,740.20 = 11,786.52/x
  3. Step 3: Cross multiply
    25,830.48x = 38,740.20 × 11,786.52
  4. Step 4: Simplify right side
    25,830.48x = 456,612,142.10
  5. Step 5: Solve for x
    x = 456,612,142.10/25,830.48
  6. Step 6: Final answer
    x = 17,677.26

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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.