Home / 25,812.05-38,702.58-8,939.51

Finding the Fourth Proportional to 25,812.05, 38,702.58 and 8,939.51

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Solution

The fourth proportional to 25,812.05, 38,702.58 and 8,939.51 is: 13,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,812.05 : 38,702.58 = 8,939.51 : x
  2. Step 2: Convert to fraction form
    25,812.05/38,702.58 = 8,939.51/x
  3. Step 3: Cross multiply
    25,812.05x = 38,702.58 × 8,939.51
  4. Step 4: Simplify right side
    25,812.05x = 345,981,907.42
  5. Step 5: Solve for x
    x = 345,981,907.42/25,812.05
  6. Step 6: Final answer
    x = 13,403.89

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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.