Home / 25,787.57-35,580.21-15,175.22

Finding the Fourth Proportional to 25,787.57, 35,580.21 and 15,175.22

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Solution

The fourth proportional to 25,787.57, 35,580.21 and 15,175.22 is: 20,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.57 : 35,580.21 = 15,175.22 : x
  2. Step 2: Convert to fraction form
    25,787.57/35,580.21 = 15,175.22/x
  3. Step 3: Cross multiply
    25,787.57x = 35,580.21 × 15,175.22
  4. Step 4: Simplify right side
    25,787.57x = 539,937,514.40
  5. Step 5: Solve for x
    x = 539,937,514.40/25,787.57
  6. Step 6: Final answer
    x = 20,937.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.