Home / 25,725.10-38,590.49-8,190.85

Finding the Fourth Proportional to 25,725.10, 38,590.49 and 8,190.85

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Solution

The fourth proportional to 25,725.10, 38,590.49 and 8,190.85 is: 12,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,725.10 : 38,590.49 = 8,190.85 : x
  2. Step 2: Convert to fraction form
    25,725.10/38,590.49 = 8,190.85/x
  3. Step 3: Cross multiply
    25,725.10x = 38,590.49 × 8,190.85
  4. Step 4: Simplify right side
    25,725.10x = 316,088,915.02
  5. Step 5: Solve for x
    x = 316,088,915.02/25,725.10
  6. Step 6: Final answer
    x = 12,287.18

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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.