Home / 20,829.03-28,757.48-18,587.06

Finding the Fourth Proportional to 20,829.03, 28,757.48 and 18,587.06

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Solution

The fourth proportional to 20,829.03, 28,757.48 and 18,587.06 is: 25,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.03 : 28,757.48 = 18,587.06 : x
  2. Step 2: Convert to fraction form
    20,829.03/28,757.48 = 18,587.06/x
  3. Step 3: Cross multiply
    20,829.03x = 28,757.48 × 18,587.06
  4. Step 4: Simplify right side
    20,829.03x = 534,516,769.49
  5. Step 5: Solve for x
    x = 534,516,769.49/20,829.03
  6. Step 6: Final answer
    x = 25,662.11

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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.