Home / 39,434.30-54,420.46-21,530.44

Finding the Fourth Proportional to 39,434.30, 54,420.46 and 21,530.44

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Solution

The fourth proportional to 39,434.30, 54,420.46 and 21,530.44 is: 29,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,434.30 : 54,420.46 = 21,530.44 : x
  2. Step 2: Convert to fraction form
    39,434.30/54,420.46 = 21,530.44/x
  3. Step 3: Cross multiply
    39,434.30x = 54,420.46 × 21,530.44
  4. Step 4: Simplify right side
    39,434.30x = 1,171,696,258.93
  5. Step 5: Solve for x
    x = 1,171,696,258.93/39,434.30
  6. Step 6: Final answer
    x = 29,712.62

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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.