Home / 39,977.52-59,969.16-11,513.31

Finding the Fourth Proportional to 39,977.52, 59,969.16 and 11,513.31

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Solution

The fourth proportional to 39,977.52, 59,969.16 and 11,513.31 is: 17,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,977.52 : 59,969.16 = 11,513.31 : x
  2. Step 2: Convert to fraction form
    39,977.52/59,969.16 = 11,513.31/x
  3. Step 3: Cross multiply
    39,977.52x = 59,969.16 × 11,513.31
  4. Step 4: Simplify right side
    39,977.52x = 690,443,304.64
  5. Step 5: Solve for x
    x = 690,443,304.64/39,977.52
  6. Step 6: Final answer
    x = 17,270.79

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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.