Home / 20,659.51-30,988.99-5,077.27

Finding the Fourth Proportional to 20,659.51, 30,988.99 and 5,077.27

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Solution

The fourth proportional to 20,659.51, 30,988.99 and 5,077.27 is: 7,615.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.51 : 30,988.99 = 5,077.27 : x
  2. Step 2: Convert to fraction form
    20,659.51/30,988.99 = 5,077.27/x
  3. Step 3: Cross multiply
    20,659.51x = 30,988.99 × 5,077.27
  4. Step 4: Simplify right side
    20,659.51x = 157,339,469.26
  5. Step 5: Solve for x
    x = 157,339,469.26/20,659.51
  6. Step 6: Final answer
    x = 7,615.84

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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.