Home / 20,827.25-31,240.85-5,244.88

Finding the Fourth Proportional to 20,827.25, 31,240.85 and 5,244.88

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Solution

The fourth proportional to 20,827.25, 31,240.85 and 5,244.88 is: 7,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.25 : 31,240.85 = 5,244.88 : x
  2. Step 2: Convert to fraction form
    20,827.25/31,240.85 = 5,244.88/x
  3. Step 3: Cross multiply
    20,827.25x = 31,240.85 × 5,244.88
  4. Step 4: Simplify right side
    20,827.25x = 163,854,509.35
  5. Step 5: Solve for x
    x = 163,854,509.35/20,827.25
  6. Step 6: Final answer
    x = 7,867.31

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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.