Home / 26,277.12-39,346.68-20,987.76

Finding the Fourth Proportional to 26,277.12, 39,346.68 and 20,987.76

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Solution

The fourth proportional to 26,277.12, 39,346.68 and 20,987.76 is: 31,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,277.12 : 39,346.68 = 20,987.76 : x
  2. Step 2: Convert to fraction form
    26,277.12/39,346.68 = 20,987.76/x
  3. Step 3: Cross multiply
    26,277.12x = 39,346.68 × 20,987.76
  4. Step 4: Simplify right side
    26,277.12x = 825,798,676.64
  5. Step 5: Solve for x
    x = 825,798,676.64/26,277.12
  6. Step 6: Final answer
    x = 31,426.53

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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.