Home / 33,318.16-45,958.80-19,880.40

Finding the Fourth Proportional to 33,318.16, 45,958.80 and 19,880.40

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Solution

The fourth proportional to 33,318.16, 45,958.80 and 19,880.40 is: 27,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,318.16 : 45,958.80 = 19,880.40 : x
  2. Step 2: Convert to fraction form
    33,318.16/45,958.80 = 19,880.40/x
  3. Step 3: Cross multiply
    33,318.16x = 45,958.80 × 19,880.40
  4. Step 4: Simplify right side
    33,318.16x = 913,679,327.52
  5. Step 5: Solve for x
    x = 913,679,327.52/33,318.16
  6. Step 6: Final answer
    x = 27,422.86

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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.