Home / 26,909.80-40,385.58-18,647.74

Finding the Fourth Proportional to 26,909.80, 40,385.58 and 18,647.74

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Solution

The fourth proportional to 26,909.80, 40,385.58 and 18,647.74 is: 27,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.80 : 40,385.58 = 18,647.74 : x
  2. Step 2: Convert to fraction form
    26,909.80/40,385.58 = 18,647.74/x
  3. Step 3: Cross multiply
    26,909.80x = 40,385.58 × 18,647.74
  4. Step 4: Simplify right side
    26,909.80x = 753,099,795.59
  5. Step 5: Solve for x
    x = 753,099,795.59/26,909.80
  6. Step 6: Final answer
    x = 27,986.08

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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.