Home / 25,297.96-34,878.73-20,743.86

Finding the Fourth Proportional to 25,297.96, 34,878.73 and 20,743.86

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Solution

The fourth proportional to 25,297.96, 34,878.73 and 20,743.86 is: 28,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,297.96 : 34,878.73 = 20,743.86 : x
  2. Step 2: Convert to fraction form
    25,297.96/34,878.73 = 20,743.86/x
  3. Step 3: Cross multiply
    25,297.96x = 34,878.73 × 20,743.86
  4. Step 4: Simplify right side
    25,297.96x = 723,519,492.10
  5. Step 5: Solve for x
    x = 723,519,492.10/25,297.96
  6. Step 6: Final answer
    x = 28,599.91

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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.