Home / 39,579.48-59,399.28-14,643.12

Finding the Fourth Proportional to 39,579.48, 59,399.28 and 14,643.12

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Solution

The fourth proportional to 39,579.48, 59,399.28 and 14,643.12 is: 21,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,579.48 : 59,399.28 = 14,643.12 : x
  2. Step 2: Convert to fraction form
    39,579.48/59,399.28 = 14,643.12/x
  3. Step 3: Cross multiply
    39,579.48x = 59,399.28 × 14,643.12
  4. Step 4: Simplify right side
    39,579.48x = 869,790,784.95
  5. Step 5: Solve for x
    x = 869,790,784.95/39,579.48
  6. Step 6: Final answer
    x = 21,975.80

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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.