Home / 25,796.77-38,695.16-20,635.45

Finding the Fourth Proportional to 25,796.77, 38,695.16 and 20,635.45

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Solution

The fourth proportional to 25,796.77, 38,695.16 and 20,635.45 is: 30,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,796.77 : 38,695.16 = 20,635.45 : x
  2. Step 2: Convert to fraction form
    25,796.77/38,695.16 = 20,635.45/x
  3. Step 3: Cross multiply
    25,796.77x = 38,695.16 × 20,635.45
  4. Step 4: Simplify right side
    25,796.77x = 798,492,039.42
  5. Step 5: Solve for x
    x = 798,492,039.42/25,796.77
  6. Step 6: Final answer
    x = 30,953.18

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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.