Home / 25,631.10-38,423.86-13,791.24

Finding the Fourth Proportional to 25,631.10, 38,423.86 and 13,791.24

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Solution

The fourth proportional to 25,631.10, 38,423.86 and 13,791.24 is: 20,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.10 : 38,423.86 = 13,791.24 : x
  2. Step 2: Convert to fraction form
    25,631.10/38,423.86 = 13,791.24/x
  3. Step 3: Cross multiply
    25,631.10x = 38,423.86 × 13,791.24
  4. Step 4: Simplify right side
    25,631.10x = 529,912,640.51
  5. Step 5: Solve for x
    x = 529,912,640.51/25,631.10
  6. Step 6: Final answer
    x = 20,674.60

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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.