Home / 20,757.04-28,648.37-12,258.59

Finding the Fourth Proportional to 20,757.04, 28,648.37 and 12,258.59

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Solution

The fourth proportional to 20,757.04, 28,648.37 and 12,258.59 is: 16,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.04 : 28,648.37 = 12,258.59 : x
  2. Step 2: Convert to fraction form
    20,757.04/28,648.37 = 12,258.59/x
  3. Step 3: Cross multiply
    20,757.04x = 28,648.37 × 12,258.59
  4. Step 4: Simplify right side
    20,757.04x = 351,188,509.40
  5. Step 5: Solve for x
    x = 351,188,509.40/20,757.04
  6. Step 6: Final answer
    x = 16,919.01

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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.