Home / 39,985.86-59,958.72-13,322.48

Finding the Fourth Proportional to 39,985.86, 59,958.72 and 13,322.48

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Solution

The fourth proportional to 39,985.86, 59,958.72 and 13,322.48 is: 19,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985.86 : 59,958.72 = 13,322.48 : x
  2. Step 2: Convert to fraction form
    39,985.86/59,958.72 = 13,322.48/x
  3. Step 3: Cross multiply
    39,985.86x = 59,958.72 × 13,322.48
  4. Step 4: Simplify right side
    39,985.86x = 798,798,585.70
  5. Step 5: Solve for x
    x = 798,798,585.70/39,985.86
  6. Step 6: Final answer
    x = 19,977.03

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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.