Home / 25,455.80-38,211.64-20,224.44

Finding the Fourth Proportional to 25,455.80, 38,211.64 and 20,224.44

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Solution

The fourth proportional to 25,455.80, 38,211.64 and 20,224.44 is: 30,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.80 : 38,211.64 = 20,224.44 : x
  2. Step 2: Convert to fraction form
    25,455.80/38,211.64 = 20,224.44/x
  3. Step 3: Cross multiply
    25,455.80x = 38,211.64 × 20,224.44
  4. Step 4: Simplify right side
    25,455.80x = 772,808,969.92
  5. Step 5: Solve for x
    x = 772,808,969.92/25,455.80
  6. Step 6: Final answer
    x = 30,358.85

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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.