Home / 20,346.16-28,039.92-13,974.64

Finding the Fourth Proportional to 20,346.16, 28,039.92 and 13,974.64

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Solution

The fourth proportional to 20,346.16, 28,039.92 and 13,974.64 is: 19,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.16 : 28,039.92 = 13,974.64 : x
  2. Step 2: Convert to fraction form
    20,346.16/28,039.92 = 13,974.64/x
  3. Step 3: Cross multiply
    20,346.16x = 28,039.92 × 13,974.64
  4. Step 4: Simplify right side
    20,346.16x = 391,847,787.63
  5. Step 5: Solve for x
    x = 391,847,787.63/20,346.16
  6. Step 6: Final answer
    x = 19,259.05

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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.