Home / 39,987.08-59,940.46-13,673.80

Finding the Fourth Proportional to 39,987.08, 59,940.46 and 13,673.80

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Solution

The fourth proportional to 39,987.08, 59,940.46 and 13,673.80 is: 20,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.08 : 59,940.46 = 13,673.80 : x
  2. Step 2: Convert to fraction form
    39,987.08/59,940.46 = 13,673.80/x
  3. Step 3: Cross multiply
    39,987.08x = 59,940.46 × 13,673.80
  4. Step 4: Simplify right side
    39,987.08x = 819,613,861.95
  5. Step 5: Solve for x
    x = 819,613,861.95/39,987.08
  6. Step 6: Final answer
    x = 20,496.97

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1.5x scale

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.