Home / 20,325.38-28,048.30-11,250.76

Finding the Fourth Proportional to 20,325.38, 28,048.30 and 11,250.76

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Solution

The fourth proportional to 20,325.38, 28,048.30 and 11,250.76 is: 15,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.38 : 28,048.30 = 11,250.76 : x
  2. Step 2: Convert to fraction form
    20,325.38/28,048.30 = 11,250.76/x
  3. Step 3: Cross multiply
    20,325.38x = 28,048.30 × 11,250.76
  4. Step 4: Simplify right side
    20,325.38x = 315,564,551.47
  5. Step 5: Solve for x
    x = 315,564,551.47/20,325.38
  6. Step 6: Final answer
    x = 15,525.64

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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.