Home / 20,416.84-28,177.26-12,464.40

Finding the Fourth Proportional to 20,416.84, 28,177.26 and 12,464.40

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Solution

The fourth proportional to 20,416.84, 28,177.26 and 12,464.40 is: 17,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.84 : 28,177.26 = 12,464.40 : x
  2. Step 2: Convert to fraction form
    20,416.84/28,177.26 = 12,464.40/x
  3. Step 3: Cross multiply
    20,416.84x = 28,177.26 × 12,464.40
  4. Step 4: Simplify right side
    20,416.84x = 351,212,639.54
  5. Step 5: Solve for x
    x = 351,212,639.54/20,416.84
  6. Step 6: Final answer
    x = 17,202.11

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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.