Home / 20,952.57-31,439.34-13,052.64

Finding the Fourth Proportional to 20,952.57, 31,439.34 and 13,052.64

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Solution

The fourth proportional to 20,952.57, 31,439.34 and 13,052.64 is: 19,585.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.57 : 31,439.34 = 13,052.64 : x
  2. Step 2: Convert to fraction form
    20,952.57/31,439.34 = 13,052.64/x
  3. Step 3: Cross multiply
    20,952.57x = 31,439.34 × 13,052.64
  4. Step 4: Simplify right side
    20,952.57x = 410,366,386.86
  5. Step 5: Solve for x
    x = 410,366,386.86/20,952.57
  6. Step 6: Final answer
    x = 19,585.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.