Home / 20,398.37-28,065.45-16,535.57

Finding the Fourth Proportional to 20,398.37, 28,065.45 and 16,535.57

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Solution

The fourth proportional to 20,398.37, 28,065.45 and 16,535.57 is: 22,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.37 : 28,065.45 = 16,535.57 : x
  2. Step 2: Convert to fraction form
    20,398.37/28,065.45 = 16,535.57/x
  3. Step 3: Cross multiply
    20,398.37x = 28,065.45 × 16,535.57
  4. Step 4: Simplify right side
    20,398.37x = 464,078,213.06
  5. Step 5: Solve for x
    x = 464,078,213.06/20,398.37
  6. Step 6: Final answer
    x = 22,750.75

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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.