Home / 39,258.96-54,175.80-21,353.98

Finding the Fourth Proportional to 39,258.96, 54,175.80 and 21,353.98

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Solution

The fourth proportional to 39,258.96, 54,175.80 and 21,353.98 is: 29,467.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,258.96 : 54,175.80 = 21,353.98 : x
  2. Step 2: Convert to fraction form
    39,258.96/54,175.80 = 21,353.98/x
  3. Step 3: Cross multiply
    39,258.96x = 54,175.80 × 21,353.98
  4. Step 4: Simplify right side
    39,258.96x = 1,156,868,949.68
  5. Step 5: Solve for x
    x = 1,156,868,949.68/39,258.96
  6. Step 6: Final answer
    x = 29,467.64

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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.