Home / 39,938.25-59,907.38-13,643.22

Finding the Fourth Proportional to 39,938.25, 59,907.38 and 13,643.22

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Solution

The fourth proportional to 39,938.25, 59,907.38 and 13,643.22 is: 20,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,938.25 : 59,907.38 = 13,643.22 : x
  2. Step 2: Convert to fraction form
    39,938.25/59,907.38 = 13,643.22/x
  3. Step 3: Cross multiply
    39,938.25x = 59,907.38 × 13,643.22
  4. Step 4: Simplify right side
    39,938.25x = 817,329,564.96
  5. Step 5: Solve for x
    x = 817,329,564.96/39,938.25
  6. Step 6: Final answer
    x = 20,464.83

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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.