Home / 25,520.69-38,199.12-13,644.78

Finding the Fourth Proportional to 25,520.69, 38,199.12 and 13,644.78

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Solution

The fourth proportional to 25,520.69, 38,199.12 and 13,644.78 is: 20,423.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,520.69 : 38,199.12 = 13,644.78 : x
  2. Step 2: Convert to fraction form
    25,520.69/38,199.12 = 13,644.78/x
  3. Step 3: Cross multiply
    25,520.69x = 38,199.12 × 13,644.78
  4. Step 4: Simplify right side
    25,520.69x = 521,218,588.59
  5. Step 5: Solve for x
    x = 521,218,588.59/25,520.69
  6. Step 6: Final answer
    x = 20,423.38

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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.