Home / 39,258.31-54,176.72-21,353.44

Finding the Fourth Proportional to 39,258.31, 54,176.72 and 21,353.44

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Solution

The fourth proportional to 39,258.31, 54,176.72 and 21,353.44 is: 29,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,258.31 : 54,176.72 = 21,353.44 : x
  2. Step 2: Convert to fraction form
    39,258.31/54,176.72 = 21,353.44/x
  3. Step 3: Cross multiply
    39,258.31x = 54,176.72 × 21,353.44
  4. Step 4: Simplify right side
    39,258.31x = 1,156,859,339.92
  5. Step 5: Solve for x
    x = 1,156,859,339.92/39,258.31
  6. Step 6: Final answer
    x = 29,467.88

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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.