Home / 39,258.47-54,175.12-21,353.45

Finding the Fourth Proportional to 39,258.47, 54,175.12 and 21,353.45

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Solution

The fourth proportional to 39,258.47, 54,175.12 and 21,353.45 is: 29,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,258.47 : 54,175.12 = 21,353.45 : x
  2. Step 2: Convert to fraction form
    39,258.47/54,175.12 = 21,353.45/x
  3. Step 3: Cross multiply
    39,258.47x = 54,175.12 × 21,353.45
  4. Step 4: Simplify right side
    39,258.47x = 1,156,825,716.16
  5. Step 5: Solve for x
    x = 1,156,825,716.16/39,258.47
  6. Step 6: Final answer
    x = 29,466.91

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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.