Home / 20,533.42-28,336.08-11,101.96

Finding the Fourth Proportional to 20,533.42, 28,336.08 and 11,101.96

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Solution

The fourth proportional to 20,533.42, 28,336.08 and 11,101.96 is: 15,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.42 : 28,336.08 = 11,101.96 : x
  2. Step 2: Convert to fraction form
    20,533.42/28,336.08 = 11,101.96/x
  3. Step 3: Cross multiply
    20,533.42x = 28,336.08 × 11,101.96
  4. Step 4: Simplify right side
    20,533.42x = 314,586,026.72
  5. Step 5: Solve for x
    x = 314,586,026.72/20,533.42
  6. Step 6: Final answer
    x = 15,320.68

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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.