Home / 39,918.72-59,884.24-13,617.32

Finding the Fourth Proportional to 39,918.72, 59,884.24 and 13,617.32

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Solution

The fourth proportional to 39,918.72, 59,884.24 and 13,617.32 is: 20,428.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.72 : 59,884.24 = 13,617.32 : x
  2. Step 2: Convert to fraction form
    39,918.72/59,884.24 = 13,617.32/x
  3. Step 3: Cross multiply
    39,918.72x = 59,884.24 × 13,617.32
  4. Step 4: Simplify right side
    39,918.72x = 815,462,859.04
  5. Step 5: Solve for x
    x = 815,462,859.04/39,918.72
  6. Step 6: Final answer
    x = 20,428.08

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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.