Home / 25,689.10-38,537.70-8,160.70

Finding the Fourth Proportional to 25,689.10, 38,537.70 and 8,160.70

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Solution

The fourth proportional to 25,689.10, 38,537.70 and 8,160.70 is: 12,242.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,689.10 : 38,537.70 = 8,160.70 : x
  2. Step 2: Convert to fraction form
    25,689.10/38,537.70 = 8,160.70/x
  3. Step 3: Cross multiply
    25,689.10x = 38,537.70 × 8,160.70
  4. Step 4: Simplify right side
    25,689.10x = 314,494,608.39
  5. Step 5: Solve for x
    x = 314,494,608.39/25,689.10
  6. Step 6: Final answer
    x = 12,242.34

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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.