Home / 39,971.36-55,167.12-38,199.84

Finding the Fourth Proportional to 39,971.36, 55,167.12 and 38,199.84

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Solution

The fourth proportional to 39,971.36, 55,167.12 and 38,199.84 is: 52,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,971.36 : 55,167.12 = 38,199.84 : x
  2. Step 2: Convert to fraction form
    39,971.36/55,167.12 = 38,199.84/x
  3. Step 3: Cross multiply
    39,971.36x = 55,167.12 × 38,199.84
  4. Step 4: Simplify right side
    39,971.36x = 2,107,375,157.26
  5. Step 5: Solve for x
    x = 2,107,375,157.26/39,971.36
  6. Step 6: Final answer
    x = 52,722.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.