Home / 26,381.82-39,538.28-20,118.90

Finding the Fourth Proportional to 26,381.82, 39,538.28 and 20,118.90

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Solution

The fourth proportional to 26,381.82, 39,538.28 and 20,118.90 is: 30,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,381.82 : 39,538.28 = 20,118.90 : x
  2. Step 2: Convert to fraction form
    26,381.82/39,538.28 = 20,118.90/x
  3. Step 3: Cross multiply
    26,381.82x = 39,538.28 × 20,118.90
  4. Step 4: Simplify right side
    26,381.82x = 795,466,701.49
  5. Step 5: Solve for x
    x = 795,466,701.49/26,381.82
  6. Step 6: Final answer
    x = 30,152.08

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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.