Home / 39,781.55-59,673.00-13,486.97

Finding the Fourth Proportional to 39,781.55, 59,673.00 and 13,486.97

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Solution

The fourth proportional to 39,781.55, 59,673.00 and 13,486.97 is: 20,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.55 : 59,673.00 = 13,486.97 : x
  2. Step 2: Convert to fraction form
    39,781.55/59,673.00 = 13,486.97/x
  3. Step 3: Cross multiply
    39,781.55x = 59,673.00 × 13,486.97
  4. Step 4: Simplify right side
    39,781.55x = 804,808,160.57
  5. Step 5: Solve for x
    x = 804,808,160.57/39,781.55
  6. Step 6: Final answer
    x = 20,230.69

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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.