Home / 39,395.64-59,043.54-38,979

Finding the Fourth Proportional to 39,395.64, 59,043.54 and 38,979

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Solution

The fourth proportional to 39,395.64, 59,043.54 and 38,979 is: 58,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.64 : 59,043.54 = 38,979 : x
  2. Step 2: Convert to fraction form
    39,395.64/59,043.54 = 38,979/x
  3. Step 3: Cross multiply
    39,395.64x = 59,043.54 × 38,979
  4. Step 4: Simplify right side
    39,395.64x = 2,301,458,145.66
  5. Step 5: Solve for x
    x = 2,301,458,145.66/39,395.64
  6. Step 6: Final answer
    x = 58,419.11

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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.