Home / 25,531.32-38,297.02-12,385.62

Finding the Fourth Proportional to 25,531.32, 38,297.02 and 12,385.62

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Solution

The fourth proportional to 25,531.32, 38,297.02 and 12,385.62 is: 18,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.32 : 38,297.02 = 12,385.62 : x
  2. Step 2: Convert to fraction form
    25,531.32/38,297.02 = 12,385.62/x
  3. Step 3: Cross multiply
    25,531.32x = 38,297.02 × 12,385.62
  4. Step 4: Simplify right side
    25,531.32x = 474,332,336.85
  5. Step 5: Solve for x
    x = 474,332,336.85/25,531.32
  6. Step 6: Final answer
    x = 18,578.45

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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.